On CapCut for PC (7.7 to 7.9), Fade In is no longer consistently re-initialized after certain timeline operations.

It usually breaks after one or more of these actions:

• Switching between multiple projects without restarting CapCut

• Copy/pasting clips with effects already applied

• Changing clip speed or time remapping

• Applying Fade In before color/LUT/effects

• Using Adjustment Layers above the clip

• GPU memory cache getting “stuck” (this one’s big)

Once it breaks, the Fade In:

• Applies visually in the UI

• But renders as a hard cut or does nothing at playback/export

• And won’t work again until something resets the effect engine

That is why it feels random as it’s state-related, not user error.

Quick tests to confirm it’s the same bug

Try this once:

1. Open CapCut fresh

2. New project

3. Import one clip

4. Apply Fade In → works

5. Now open another project or paste another clip

6. Go back and apply Fade In again → doesn’t work

If that’s your experience then this is the same bug.

Fixes to try that actually help, before CapCut developers fix this:

Fix #1 – Force re-initialization (fastest)

When Fade In stops working:

1. Select the clip

2. Remove ALL effects from the clip

3. Click another clip

4. Click back

5. Re-apply Fade In
   → Works ~70% of the time

Fix #2 – Apply Fade In LAST (important)

This matters now (didn’t used to):

Correct order

1. Cut / trim

2. Speed / time remap

3. Color / LUT

4. Other effects

5. Fade In (last step)

If you apply Fade In early, it is very likely to silently break later.

Fix #3 – Disable GPU Cache (most reliable)

This is the big one for Win10/Win11 users.

1. Settings → Performance

2. Disable “GPU acceleration for effects”

3. Restart CapCut

Yes, previews may be slightly slower but Fade In becomes stable again.

Most CapCut PRO editors have posted that this fixes it almost completely.

Fix #4 – Restart CapCut between projects

Annoying, but effective:

• Finish Project A → close CapCut

• Reopen → Project B

This avoids the effect-state corruption entirely.

Professional workaround for rock-solid performance with zero bugs

If this is client work and you need 100% reliability:

Opacity keyframe Fade (manual)

1. Select clip

2. Add keyframe at frame 1 → Opacity = 0%

3. Add keyframe at desired fade end → Opacity = 100%

• Never breaks
• Renders correctly
• Works across versions
• Batch-copyable

Many studios have switched to this method permanently until CapCut developers fixes Fade In.

Why CapCut hasn’t fixed it yet:

• New effect pipeline optimization

• Partial migration to unified mobile/desktop engine

• GPU caching regressions on Windows

It doesn’t show up on every system, which makes it harder for developers to hotfix but enough PRO users have reported it that it why it is on the internal bug tracker  and you did the right thing sending feedback.

What you should do right now:

For daily work:

• Disable GPU acceleration or

• Use opacity keyframes for fades

For testing future updates:

• Re-enable GPU

• Test Fade In immediately after install

• If broken → roll back or stick with workaround

We can help you  narrow this down even further and give you a setup that is basically bulletproof, if you can post the below information:

• Your GPU (NVIDIA / AMD / Intel + model)

• Whether you use adjustment layers

• Whether the issue happens on export or only preview