If you’ve opened CapCut to edit a video and suddenly see a black screen instead of your video, you’re not alone. Many users report this issue on Android, iPhone, and PC, and it can happen during editing, preview, or after importing clips.

A black screen in CapCut can make your video editing impossible — leaving users frustrated and stuck.

This guide explains all the reasons why CapCut shows a black screen and provides 15 proven fixes that solve the problem permanently.

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⭐ Why CapCut Shows a Black Screen

CapCut may display a black screen due to several reasons:

• Corrupted or unsupported video file
• Wrong canvas aspect ratio
• Video resolution or codec not compatible
• Heavy project with too many layers
• Hardware acceleration or device limitations
• Overlay layer conflicts
• Old CapCut version bug
• Export/render settings mismatch
• Low device RAM
• App cache overload
• Template restrictions

Let’s solve these problems step by step.

---

✅ Fix 1: Check Video File Compatibility

CapCut mod apk works best with:

• MP4 (H.264 codec)
• MOV

Unsupported formats like MKV, WEBM, HEVC (iPhone) or corrupted files often appear as black screens.

Steps:

1. Convert video to MP4 / H.264
2. Import into CapCut
3. Preview the video

This solves most black screen issues.

---

✅ Fix 2: Adjust Canvas Aspect Ratio

If your video’s aspect ratio doesn’t match the canvas:

• Horizontal video in vertical 9:16 canvas → black bars or black screen
• 16:9 in 1:1 → part of video not visible

Fix:

1. Tap Canvas
2. Choose the correct ratio for your video:
   • TikTok/Reels: 9:16
   • YouTube: 16:9
   • Instagram: 1:1

Black screen caused by mismatch will disappear.

---

✅ Fix 3: Clear CapCut Cache

Cache corruption can make videos appear black:

Android:

Settings → Apps → CapCut → Storage → Clear Cache

iPhone:

Uninstall → Reinstall (cache is cleared automatically)

---

✅ Fix 4: Update CapCut

Older versions have known black screen bugs, especially with newer codecs or long videos.

• Update CapCut pro apk via Play Store, App Store, or CapCut Web
• Restart the app and try again

---

✅ Fix 5: Disable Hardware Acceleration

Hardware acceleration sometimes conflicts with device GPU and causes black preview.

Fix:

• Go to Settings → Export / Render Settings
• Turn off Hardware Acceleration
• Preview video again

---

✅ Fix 6: Check Overlay Layers

If black screen occurs only in part of the video:

• Overlay layers (stickers, text, effects) may block main video
• Effects like 3D Zoom, blur, or AI background removal may glitch

Fix:

• Hide overlay layers temporarily
• Preview video
• Re-enable overlays after confirming main clip works

---

✅ Fix 7: Lower Video Resolution or Convert Clips

High-resolution videos (4K, 8K) may fail to preview on mobile devices due to RAM limitations.

Fix:

• Convert video to 1080p
• Reduce FPS to 30 or 60
• Import again

This makes CapCut display the video without black screen.

CapCut Transitions Not Working? Fix Glitches & Errors in CapCut Transitions (Ultimate 2025 Guide)

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✅ Fix 8: Split Long Clips

Extremely long clips can cause black screen in timeline preview.

Fix:

1. Split video into smaller segments
2. Apply edits and transitions
3. Merge clips if needed

---

✅ Fix 9: Restart Device

Low RAM or GPU overload can cause CapCut to fail rendering.

Fix:

• Close all background apps
• Restart your phone or PC
• Open CapCut and preview video again

---

✅ Fix 10: Use CapCut Web

CapCut Web handles heavier projects better than older phones.

• Open CapCut Web on Chrome/Edge
• Import project
• Preview and export video

This is especially useful for black screen issues caused by low-end devices.

---

✅ Fix 11: Check File Location

Videos stored in:

• SD card
• Restricted folders
• Cloud storage (OneDrive, iCloud)

…may cause CapCut to show black screen.

Fix:

• Move videos to Internal Storage → DCIM or Movies
• Import from there

---

✅ Fix 12: Re-import the Video

Sometimes CapCut fails to load videos properly.

Fix:

• Delete clip from timeline
• Re-import fresh copy
• Preview

---

✅ Fix 13: Avoid Templates That Restrict Clips

Some CapCut templates:

• Lock video layers
• Prevent certain formats
• Cause black screen in timeline

Fix:

• Use a blank project
• Add text, clips, and effects manually

---

✅ Fix 14: Check Export Settings

Black screen may occur only in exported video, not preview:

• Mismatched resolution
• Unsupported codec
• Hardware acceleration

Fix:

• Match export resolution with project
• Turn off hardware acceleration
• Use MP4 / H.264 codec
• Export again

---

✅ Fix 15: Reinstall CapCut

If all else fails:

1. Backup project drafts
2. Uninstall CapCut
3. Install latest version of Capcut mod apk
4. Import project again

This removes corrupted app files causing black screen.

---

⭐ Tips to Avoid Black Screen in CapCut

• Always use MP4 / H.264
• Match project canvas with video
• Avoid extreme resolutions on mobile devices
• Keep RAM free by closing background apps
• Use CapCut Web for large projects
• Apply transitions/effects after confirming video loads
• Update CapCut regularly

---

📌 FAQ: CapCut Black Screen

1. Why does CapCut show black screen only in preview?

• Usually hardware acceleration or overlay effects conflict.

2. Why is the black screen only in exported video?

• Export settings mismatch (resolution/FPS/codec).

3. Does SD card storage cause black screen?

• Yes, move clips to internal storage.

4. Can templates cause black screen?

• Yes, blank projects are safer.

Transitions are one of the most popular tools in CapCut. They make your video smooth, cinematic, and professional. But many users encounter the frustrating problem of transitions not working, glitching, or not appearing after export.

This is especially common for creators making TikTok, Reels, or YouTube Shorts, where smooth transitions are essential to retain viewers.

In this full guide, we’ll cover all reasons why CapCut transitions fail and provide 15 real fixes that solve the problem permanently.

---

⭐ Why CapCut Transitions Fail or Glitch

CapCut transitions may fail due to several factors:

• Video clips too short for the transition duration
• Overlapping layers or overlay clips
• Using effects that conflict with transitions
• Timeline zoom too far out (clips not aligned)
• Corrupted video files
• Export settings mismatch
• Project frame rate different from clips
• Heavy transitions like 3D, glitch, or shake causing lag
• Old CapCut version or bug
• Template restrictions
• Hardware acceleration bugs
• Cache overload

Let’s solve all of these step by step.

---

✅ Fix 1: Make Sure Clips Are Long Enough for Transition

CapCut mod apk requires each clip to have enough duration to apply a transition.

Steps:

1. Select two clips
2. Check clip length (minimum 1 second recommended)
3. Drag clips to extend duration if too short
4. Apply transition

Tip: If clips are shorter than transition duration, CapCut will refuse or glitch.

---

✅ Fix 2: Ensure Clips Are Adjacent

Transitions only work if two clips touch each other on the timeline.

Fix:

1. Zoom into the timeline
2. Remove gaps between clips
3. Apply transition again

Gaps = transition fails.

---

✅ Fix 3: Disable Conflicting Effects

Some effects can interfere with transitions:

• 3D Zoom
• Speed ramp / Velocity effects
• Glow / Shadow effects
• Filters like AI background removal

Fix:

• Remove or temporarily disable heavy effects
• Apply transitions first, then add effects

This ensures smooth transition rendering.

---

✅ Fix 4: Match Project Frame Rate with Video Clips

If your project FPS differs from clips:

• 30FPS project + 60FPS clip → transition may glitch
• 24FPS project + 60FPS clip → stutter

Fix:

1. Start a new project
2. Set FPS = clip FPS
3. Import videos
4. Apply transitions

---

✅ Fix 5: Check Overlay Layers

Transitions don’t work if overlay layers cover the clip junction:

Fix:

1. Temporarily hide overlays (text, stickers, effects)
2. Apply transition
3. Re-enable overlays

---

✅ Fix 6: Clear Cache and Restart CapCut

Cache overload can cause transitions to:

• Not render
• Lag in preview
• Disappear after export

Steps:

• Android: Settings → Apps → CapCut → Clear Cache
• iPhone: Reinstall app (iOS clears cache automatically)

Then try transitions again.

---

✅ Fix 7: Update CapCut

Many transition glitches are due to old app versions.

• Transition preview not working
• Exported video shows glitches
• Certain transition packs fail

Solution: Update CapCut from https://capcutapk.id/ App Store / CapCut Web.

CapCut Text Not Showing After Export? Fix Missing Text & Titles in CapCut (Ultimate 2025 Guide)

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✅ Fix 8: Export Resolution & Codec Check

Transitions may look fine in preview but glitch after export if export settings don’t match project settings:

• Resolution mismatch
• FPS mismatch
• Hardware acceleration enabled

Fix:

1. Match resolution and FPS to project
2. Turn off hardware acceleration
3. Export

---

✅ Fix 9: Avoid Overlapping Speed Ramps on Transition

Velocity edits applied to a clip during transition often break it.

Fix:

1. Apply transition
2. Then add speed ramp / velocity effect after the transition
3. Or split the clip and apply velocity to non-transition part

---

✅ Fix 10: Avoid Applying Multiple Transitions on Same Clip Junction

CapCut may allow stacking transitions, but it causes glitches.

Fix:

• Only one transition per junction
• If needed, extend clips and split junctions for additional transitions

---

✅ Fix 11: Use Default Built-in Transitions First

Downloaded transition packs or template transitions may fail due to:

• Unsupported format
• Device compatibility issues

Fix:

• Test built-in CapCut transitions first
• Once confirmed, try advanced transitions

---

✅ Fix 12: Check Device Performance

Low-end phones may fail to preview or render transitions smoothly:

• Android 2–3GB RAM → stutter
• CPU overheating → lag
• Background apps consuming resources

Fix:

• Close background apps
• Reduce timeline zoom
• Use shorter clips
• Export in 1080p if 4K slows rendering

---

✅ Fix 13: Use CapCut Web for Heavy Transitions

CapCut Web handles heavy 3D or glitch transitions better than mobile on low-end devices.

1. Open CapCut Web
2. Import your clips
3. Apply transitions
4. Export final video

---

✅ Fix 14: Split Clips for Complex Transitions

Long clips with multiple effects may fail transitions.

Fix:

1. Split long clips into smaller segments
2. Apply transitions at junctions
3. Merge segments later

---

✅ Fix 15: Reinstall CapCut as Last Resort

If nothing works:

• Backup drafts
• Uninstall CapCut
• Install latest version

This removes corrupted internal files causing transition errors.

---

⭐ Tips for Smooth CapCut Transitions

• Always check clip length
• Keep clips adjacent
• Apply transitions before heavy effects
• Use built-in transitions for guaranteed compatibility
• Match FPS and resolution
• Zoom timeline for precision
• Avoid multiple transitions on the same junction

---

📌 FAQ: CapCut Transition Problems

1. Why do transitions glitch in preview but export fine?

• Low device RAM, preview rendering lags. Export usually fixes this.

2. Why does transition disappear after export?

• FPS mismatch or export hardware acceleration bug.

3. Can templates block transitions?

• Yes. Blank projects give full transition freedom.

4. Are 3D/glitch transitions unstable on mobile?

• Yes, low-end phones may fail. Use CapCut Web or reduce resolution.

Adding text in CapCut is easy — but what happens when your titles, captions, or subtitles disappear after exporting? Many users spend hours perfecting text, only to find that their exported video has blank spaces where the text should be.

This problem is extremely common and frustrating, especially for:

• TikTok creators
• YouTube Shorts editors
• Instagram Reels editors
• Subtitling videos
• Tutorials or captions

In this guide, we’ll explain why CapCut text disappears, and give 15 proven fixes that actually solve the problem.

---

⭐ Why CapCut Text Disappears After Export

CapCut may remove or hide text after exporting due to several reasons:

• Text layer is disabled during export
• Using effects or animations incompatible with export
• Exporting at wrong resolution or aspect ratio
• Text duration set incorrectly in timeline
• Overlay layers conflict with text
• App cache corrupted
• Old CapCut version bug
• Text placed outside the safe zone (edges get cut)
• Using templates that lock certain text layers
• Text font not supported in certain devices
• Video resolution too low for rendering complex text
• Hardware acceleration bug
• Exporting while the app is running in background

Now let’s fix it step by step.

---

✅ Fix 1: Make Sure Text Layer Is Enabled

Sometimes users accidentally hide text:

Steps:

1. Tap on the text layer
2. Check if it shows a white outline (selected)
3. Make sure Visibility / Eye icon is ON

If it’s hidden, CapCut mod apk will not render it in the final export.

---

✅ Fix 2: Check Text Duration in Timeline

If text duration ends before video ends, it will disappear after export.

Steps:

1. Zoom into the timeline
2. Drag the ends of the text layer to cover the full video duration
3. Play preview to confirm

---

✅ Fix 3: Avoid Placing Text Outside Safe Area

CapCut crops edges in certain aspect ratios:

• 9:16 (TikTok/Reels)
• 16:9 (YouTube)
• 1:1 (Instagram)

Fix:

1. Open Canvas → Select correct aspect ratio
2. Keep all text inside the visible frame
3. Avoid placing text too close to edges

---

✅ Fix 4: Disable Conflicting Overlay Effects

Effects like:

• 3D Zoom
• Motion blur
• Glow
• Shadow animations
• Background removal

Can make text invisible after export.

Fix:

1. Remove heavy effects temporarily
2. Export again
3. Add effects after confirming text renders

---

✅ Fix 5: Update CapCut (Fixes Export Text Bug)

Older versions have bugs causing:

• Text not showing
• Export cutting overlays
• Template text glitches

Fix:

Update CapCut via from https://capcutapk.id.

---

✅ Fix 6: Clear Cache Before Export

Cache overload causes render errors:

Android:

Settings → Apps → CapCut → Clear Cache

iPhone:

Uninstall → Reinstall (iOS clears cache automatically)

---

✅ Fix 7: Check Export Resolution & Aspect Ratio

If the export resolution or aspect ratio differs from the project, CapCut can crop or remove text.

Steps:

1. Tap Export
2. Match Resolution with project
3. Ensure Aspect Ratio matches canvas (9:16, 16:9, etc.)
4. Export again

---

✅ Fix 8: Avoid Templates That Lock Text

Some CapCut templates do not allow new text layers to render in final export.

Fix:

1. Create a blank project
2. Import video
3. Add text manually

Now it will render normally.

---

✅ Fix 9: Re-add Text Using Native CapCut Fonts

Some imported fonts or downloaded fonts may not render correctly on certain devices.

Fix:

1. Remove text
2. Re-add using CapCut’s built-in fonts
3. Export

---

✅ Fix 10: Avoid Hardware Acceleration Bugs

Hardware acceleration may cause rendering errors:

Fix:

1. Go to Settings → Export
2. Turn off Hardware Acceleration
3. Export again

---

✅ Fix 11: Separate Text Into Layers

Instead of adding all text in one layer:

• Add multiple text layers
• Each text has its own duration

This prevents layer conflicts and ensures all text is visible.

---

✅ Fix 12: Avoid Overly Long Text Animations

Heavy animations like 3D spin, bounce, or complex entry/exit may fail during export.

Fix:

• Use simple fade, slide, or typewriter effects
• Test export after each animation

CapCut Crop Not Working? Fix Black Bars & Wrong Aspect Ratio in CapCut (Full Guide)

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✅ Fix 13: Export in Steps for Long Videos

For videos longer than 5 minutes:

• CapCut sometimes fails to render all text layers at once
• Split into smaller segments
• Export segments
• Merge segments in a new project

---

✅ Fix 14: Check Text Color vs. Background

If text color is same or similar to background:

• It may look invisible after export
• Preview in CapCut may be fine

Fix:

• Use contrasting text color
• Add shadow or outline
• Always preview in full-screen mode

---

✅ Fix 15: Reinstall CapCut if All Else Fails

As a last resort:

1. Backup drafts
2. Uninstall CapCut
3. Install latest version

This fixes corrupted app files causing missing text during export.

---

⭐ Tips for Perfect Text in CapCut

• Always check timeline duration
• Use CapCut default fonts for guaranteed compatibility
• Keep text within safe frame
• Avoid multiple heavy effects on text layer
• Update app regularly
• Zoom timeline to confirm exact frame placement
• Export in same resolution and aspect ratio as project

---

📌 FAQ: Text Not Showing After Export

1. Why does text show in preview but not export?

• Usually aspect ratio mismatch, hidden layers, or hardware acceleration.

2. Can templates block my text?

• Yes, some templates lock layers. Use a blank project instead.

3. Does font type affect text rendering?

• Yes, some custom fonts may fail. Use built-in fonts.

4. Is long video the problem?

• Export in segments to prevent layer conflicts in long videos.

If you’re trying to crop your video in CapCut but the crop tool is not working, or you still see black bars on the sides/top/bottom after cropping, you’re not alone. Thousands of users face this issue every day — especially when making TikTok, Reels, and YouTube Shorts.

The problem usually happens because of aspect ratio mismatches, canvas settings, zoom limits, or incorrect export settings.

This guide explains every reason CapCut crop fails and gives step-by-step fixes for Android, iPhone, PC, and CapCut Web.

---

⭐ Why CapCut Crop Is Not Working (All Possible Reasons)

CapCut sometimes fails to crop because of:

• Wrong canvas size selected
• Video not fitting the screen ratio
• Black borders due to horizontal videos in vertical formats
• Overlay layer not selected while cropping
• Zoom restriction (CapCut prevents too much zoom)
• Auto-resize is On
• Template restriction (cannot crop template videos)
• Export setting reverts the crop
• Old app version bug
• Video resolution too low to crop further
• PC version limitations

The solutions below cover every case.

---

✅ Solution 1: Check and Change the Canvas (Most Important)

In CapCut, cropping will never look right if your canvas aspect ratio is wrong.

How to Fix It:

1. Open your project in CapCut
2. Tap Canvas
3. Select the correct format:
   • TikTok / Reels / Shorts: 9:16
   • YouTube: 16:9
   • Instagram Post: 1:1
4. After selecting the canvas, use Edit → Crop or Zoom to fill the screen.

Why This Works:

If your video is horizontal (16:9) and your canvas is vertical (9:16), CapCut adds black bars. Cropping won’t fix it unless the canvas matches the target format.

---

✅ Solution 2: Use Zoom Instead of Crop (Cropping Bug Fix)

Sometimes, CapCut’s Crop tool glitches — especially on older phones.
Instead of Crop, use Zoom:

Steps:

1. Tap your video
2. Select Edit
3. Tap Zoom
4. Pinch to enlarge until black bars disappear

This works 90% of the time and gives smoother results than Crop.

---

✅ Solution 3: Turn Off Auto-Resize (It Breaks Cropping)

CapCut automatically adjusts your video to fit the canvas — which often undoes your crop.

Turn it OFF:

1. Tap the video layer
2. Go to Edit → Auto-Resize
3. If it’s on — turn it off

Now try cropping again.

---

✅ Solution 4: For Black Bars – Crop + Fill Method

If black bars are still visible, use this method:

Steps:

1. Go to Canvas → Color
2. Choose Blur background
3. Tap your video
4. Increase Zoom until the main subject fills the screen

Result:
No black bars + Clean background + Correct framing.

---

✅ Solution 5: Crop Not Applying Because You’re Cropping Wrong Layer

This is a common mistake.

If you have multiple layers (text, overlays, effects), CapCut may crop the wrong layer.

Fix:

1. Tap the main video layer
2. Make sure it shows a white outline
3. Then go to Crop

If the white outline appears on the overlay instead, cropping will not work on the main clip.

CapCut Audio Not Syncing With Video? Fix Out-of-Sync Sound in CapCut (Ultimate 2025 Guide)

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✅ Solution 6: Remove Black Borders Using “Frame” Tool

Sometimes, black bars are actually embedded INTO the original video — especially downloaded or screen-recorded clips.

Cropping won’t remove them.

Fix:

1. Go to Edit
2. Tap Edit → Blend → Mask
3. Try: Rectangle → Feather off → Adjust edges
4. OR use Effects → Video Effects → Basic → Blur Background

This replaces built-in black borders with a clean background.

---

✅ Solution 7: CapCut PC Version Crop Not Working (Windows Fix)

If CapCut desktop won’t crop:

Try this:

1. Select the clip
2. Go to Basic → Transform
3. Use Zoom (PC version crop is limited)
4. Set aspect ratio manually from the right panel

CapCut PC often has crop bugs — Zoom works perfectly.

---

✅ Solution 8: CapCut Template Videos Cannot Be Cropped (Important)

If you are using a CapCut Template, cropping is blocked.

Why?

Because templates lock their sequence and aspect ratio.
You cannot crop template media.

The Only Fix:

1. Download the edited video
2. Open a new empty project
3. Import the downloaded video
4. Now crop freely

---

✅ Solution 9: Update CapCut (Old Bug That Causes Crop Failure)

Older CapCut mod apk versions had known bugs:

• Cropping does nothing
• Cropped video resets after export
• Black bars reappear

Update from:

• Google Play Store
• Capcutapk,id

After updating, crop works normally again.

---

✅ Solution 10: Export Settings Reverting Your Crop

Many users crop correctly but the export settings override it.

Fix:

1. Tap Export
2. Select:
   • Resolution: 1080p
   • Format: The same ratio as your canvas
   • Codec: Default
3. Make sure “Fit to Frame” is OFF

Now your final video will match your crop.

---

✅ Solution 11: Video Resolution Too Low to Crop Further

If your video is 360p or 480p, excessive cropping becomes impossible — CapCut blocks it to prevent pixelation.

What to do:

• Use AI Upscale apps before importing
• Use CapCut Enhance → Clarity → HDR
• Or avoid extreme zoom

If the video has low resolution, cropping will always look bad.

---

✅ Solution 12: If Nothing Works — Use Safe Alternative Method

Use Manual Scaling instead of Crop:

Steps:

1. Tap your video
2. Make sure it has a white outline
3. Use your fingers to manually zoom + reposition
4. Export

This is 100% reliable and bypasses all crop bugs.

---

⭐ Final Tips to Avoid Crop Problems in Future

• Always select your canvas size BEFORE adding video
• Avoid mixing horizontal + vertical videos
• Don’t crop template footage
• Export in the same ratio you’re editing
• Keep CapCut updated
• Use Zoom when Crop glitches

These small habits eliminate 90% of cropping problems.

---

🎯 Conclusion

CapCut crop not working — or seeing black bars — is almost always caused by aspect ratio issues, canvas mismatch, or auto-resize interfering with your settings. With the methods above, you can permanently fix:

✔ Crop not applying
✔ Black bars on top/sides
✔ Crop resets after export
✔ Template video crop blocked
✔ PC crop not working
✔ Zoom/crop limits
✔ Overlay crop issues

If your CapCut audio is not syncing with video, the clip may sound delayed, early, choppy, or completely out of sync during editing or after exporting. This problem is extremely common, especially in:

• Beat sync edits
• Velocity edits
• Lip-sync videos
• Transitions
• Multi-layer timelines
• TikTok reels
• Long editing projects

In this 1000+ word ultimate guide, you’ll learn all real causes and 15 powerful fixes to solve audio sync issues permanently — even on low-end Android phones.

---

⭐ Why CapCut Audio Goes Out of Sync (All Real Causes)

Your audio and video may lose sync because of:

✔ Lag during editing (preview delay)

✔ Too many overlays or effects

✔ CPU or RAM overload

✔ Using 4K or 60FPS clips on a low-end phone

✔ Audio imported from TikTok with variable bitrate

✔ Long videos (5+ minutes) slowing timeline

✔ Velocity edits or reverse function breaking audio

✔ Using screen-recorded audio

✔ Damaged or corrupted video file

✔ Export settings not matching project FPS

✔ Phone overheating → frame drops

✔ CapCut bug (very common after updates)

Now let’s fix every possible cause step-by-step.

---

✅ Fix 1 — Use “Original Sound Sync Mode” (Secret Option)

CapCut has a hidden setting that forces audio sync.

Steps:

1. Open your project
2. Tap the audio track
3. Enable Sound Sync / Match Cut / Original Audio Mode

This recalibrates audio timing and fixes most sync issues instantly.

---

✅ Fix 2 — Disable Performance Mode to Fix Preview Lag

Preview lag often looks like audio is out of sync.

Steps:

1. Go to Settings
2. Turn Off Performance Mode
3. Restart CapCut

This forces accurate preview rendering.

---

✅ Fix 3 — Match Video FPS With Project FPS

If your video is shot at:

• 60FPS
• 30FPS
• 24FPS
• Variable FPS (screen recordings)

And your project uses a different frame rate, audio may drift.

Fix:

1. Start a new project
2. Set FPS = same FPS as your video
3. Re-import your clips

Matching FPS eliminates drift over time.

---

✅ Fix 4 — Convert Screen Recordings Before Importing

Screen recordings use variable frame rate (VFR).
CapCut cannot sync VFR perfectly → audio drifts.

Fix:

Convert VFR → CFR (Constant Frame Rate)

Solution:

• Use any online converter
• Or record again using a steady FPS (30 or 60 fps)

This instantly fixes lip-sync issues.

CapCut Lagging While Editing? Fix Slow, Choppy & Freezing Preview (Ultimate Guide)

---

✅ Fix 5 — Clear Cache (Not Data)

Cache overload makes audio and video move at different speeds.

Steps:

1. Home screen
2. Tap Settings
3. Tap Clear Cache
4. Restart CapCut app

Many sync issues vanish after this.

---

✅ Fix 6 — Stop Using TikTok Downloaded Audio

TikTok music is compressed, low bitrate, and sometimes variable bitrate, causing timing issues.

Fix:

Use:

• MP3 (constant bitrate)
• WAV (best quality)
• CapCut built-in sounds
• Extract audio from video correctly

Avoid downloading music from TikTok unless necessary.

---

✅ Fix 7 — Separate Audio From Video

If the video has its own audio (like a vlog), separate it:

Steps:

1. Select video
2. Tap Extract Audio
3. Mute original video
4. Adjust the audio clip directly

This improves accuracy and eliminates drift.

---

✅ Fix 8 — Trim Audio and Video at the Same Starting Point

If your audio starts even 0.05 seconds earlier, it feels out of sync.

Fix:

• Zoom into timeline
• Position audio exactly on the video’s starting frame
• Use frame-accurate snapping

Small alignment = huge difference.

---

✅ Fix 9 — Remove Heavy Effects Temporarily

Effects that break sync:

• Velocity
• Motion blur
• Blur transitions
• AI background removal
• 3D zoom
• Glow effects
• Stabilization

These slow real-time preview and cause audio delay.

Fix:

Temporarily turn off heavy effects until final editing stage.

---

✅ Fix 10 — Restart Phone Before Editing

When RAM is low, CapCut cannot sync audio correctly.

Restart solves:

• RAM overflow
• CPU lag
• Background audio desync

Restart before editing long projects.

---

✅ Fix 11 — Do Not Edit in 4K Timeline on Low-End Phones

4K timelines are too heavy.

Fix:

• Create project in 1080p
• Import 4K videos
• Export in 4K later

This improves sync and performance.

---

✅ Fix 12 — Do Not Use Speed Curve on Long Clips

Velocity edits distort timing and often cause:

• Click noise
• Drifting audio
• Early/late audio beats

Fix:

Split your clip → apply speed curve only to the part you need.

---

✅ Fix 13 — Fix Audio Drift After Export

If audio is fine during editing but broken after export:

Solution:

Change export settings:

• Export 30FPS
• Turn off hardware acceleration (if available)
• Use standard 1080p export
• Avoid background apps while exporting

This fixes 90% of post-export drift issues.

---

✅ Fix 14 — Replace Corrupted Video Files

If only one clip has sync issues → the video file is corrupted.

Fix:

Re-download the clip or convert it:

• MP4 (H.264)
• 30 FPS
• 1080p

Imported again → sync fixed.

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✅ Fix 15 — Update CapCut (Fixes Sync Bugs)

CapCut updates often include sync fixes for:

• Android video decoders
• Audio timing bugs
• Timeline lag

Update from Capcutapk.id/App Store.

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⭐ Special Tips for Lip-Sync Videos

For perfect lip-sync:

• Zoom in timeline maximum
• Use “Beat” feature
• Set FPS to 60
• Lock audio track (prevents shifting)
• Do NOT use slow-motion on full clip
• Use “Match Cut” tool

This ensures perfect mouth-to-sound alignment.

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⭐ Fix Audio Not Syncing on Low-End Phones (2GB–3GB RAM)

Low RAM causes:

• Audio delay
• Sound cutting
• Choppy preview

Fix:

• Turn off WiFi + data
• Close all apps
• Use 720p timeline
• Avoid more than 2 layers
• Edit smaller clips
• Keep phone cool

Performance improves massively.

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📌 FAQ — CapCut Audio Sync Problems

1. Why is audio fine in editing but wrong after export?

Because export FPS is different from timeline FPS.

2. Why audio delays only during preview?

Preview lag. Export will be fine.

3. Why does CapCut break audio after velocity edits?

Velocity distorts timing → always extract audio first.

4. Why does CapCut move audio by itself?

Because project timeline is overloaded.