Cursor lags behind in exported videos.

[dom7kim]

• Version 1.1.14, MacOS, Apple Silicon.

Let's say you clicked a button to open a popup window. In the preview, the button gets clicked and the window pops up timely. But in the exported video, these occur even before the cursor reaches the button and clicks on the button. I'm wondering what causes this problem.

[baskervile]

Same issue on v1.1.14, Apple Silicon. Cursor animation seems to be slightly delayed in exported video despite preview being correct.

[webadderall]

Is it still present in v1.1.15?

[dom7kim]

Still present :(

[webadderall]

Does it happen immediately or does it gradually desync over time?
Could users experiencing this issue please attach a screen recording?

[webadderall]

I think I've found the issue, pushing out hotfix soon

[dom7kim]

Here it is. I feel like the motions are systematically shifted. The cursor should show more motions at the end of video but it somehow stops moving and wastes several seconds.

[baskervile]

cursorCaptureStartTimeMs is set via Date.now() inside set-recording-state, which is called after multiple IPC round-trips from the renderer. By that time the native ScreenCaptureKit video has already been recording for like 100 - 200ms, so cursor timestamps are offset from video frame 0 which makes the cursor appear ahead of clicks in exports.

Patch attached.

fix-cursor-sync.patch

[baskervile]

export-1775391922548.mp4

[baskervile]

export-1775391922548.mp4

Tested on 1.1.14, seems to be working fine after applying the patch I've uploaded earlier.

[webadderall]

Actually I already applied a patch for it haha, but I appreciate the contribution!