Hi,

You have already tried the right first steps. Since the timeline playback is smooth but the exported file has freezes, this almost always points to an export / decoding problem, not an editing mistake.

Below are the most common causes of random freezes in CapCut exports and specific fixes that usually solve it.

Hardware Acceleration Bug (most common cause)

CapCut sometimes plays fine in preview but hardware encoding causes dropped or frozen frames on export.

Fix

1. Open CapCut

2. Go to Settings → Performance

3. Turn OFF:

   • Hardware Acceleration

   • GPU Encoding

4. Restart CapCut

5. Export again

6. This fixes freezing for the capcut users, especially on NVIDIA / AMD GPUs.

Variable Frame Rate (VFR) Source Footage

If your clips were recorded on:

• Phone (iPhone / Android)

• OBS

• Screen recorders

• Discord / Twitch clips

They usually use Variable Frame Rate, which causes freezes only after export.

Fix

• Export using a fixed frame rate:

  • Set FPS to exactly 30 or 60

  • Do NOT use “Auto”

If the issue persists:

• Convert your clips to constant frame rate using HandBrake:

  • Video → Framerate → Constant

  • Same FPS as your project

Timeline Resolution ≠ Export Resolution

CapCut can glitch when the timeline resolution differs from export resolution.

Fix

1. Set Project Resolution first (top-right):

   • Example: 1920×1080

2. Export using the exact same resolution

3. Avoid scaling during export

Corrupted Cache or Preview Files

Even reinstalling CapCut doesn’t always clear cache.

Fix

1. Settings → Clear Cache

2. Manually delete CapCut cache:

   • Windows:

     C:\Users\YOURNAME\AppData\Local\CapCut\User Data\Cache

3. Restart PC

4. Re-export

Bitrate too high for encoder

High bitrate can cause encoder stalls → frozen frames.

Safe Export Settings

• Format: MP4

• Codec: H.264

• FPS: 30 or 60 (fixed)

• Bitrate:

  • 1080p → 12–16 Mbps

  • 4K → 45–60 Mbps

• Encoding: Software (CPU)

One corrupted clip in the timeline

Sometimes one clip causes the entire export to freeze randomly.

How to identify it?

• Export half the timeline

• If it’s fine → the issue is in the other half

• Narrow it down

• Re-import or re-encode the bad clip

If nothing above fixes it:

Final reliable workaround

1. Export using low quality

2. Re-import the exported file into a new project

3. Export again in high quality

This forces CapCut to re-encode clean frames.

Quick Checklist to try in this order

• Disable hardware acceleration
• Export with fixed FPS
• Match timeline & export resolution
• Lower bitrate
• Clear cache
• Re-encode phone/screen recordings

Can you give us below information as a response to this thread to help you out further:

• Your GPU

• Where the footage came from (phone, OBS, camera, screen recording)

• FPS you are exporting at

We can give you exact settings that will stop the freezes completely.