[Bug]: Timeline freezes and plays stale pre-cut footage after deleting the left segment and dragging the right clip to the start

[michumichifu]

Describe the bug

After splitting a clip, deleting the segment to the left of the cut, and then dragging the remaining right-hand clip to the start of the timeline (to close the empty gap), playback breaks: around the 5–6s mark the playhead gets stuck and the preview keeps showing the old footage from before the cut, instead of the content actually at that position in the moved clip.

Trimming the clip's in-point in place (without moving the clip on the timeline) does not trigger the bug and exports correctly — so the issue seems specific to repositioning a clip after a split.

Expected behavior

After moving the trimmed clip to the start, playback/preview should show the clip's actual content at each position, not stale pre-cut footage.

To Reproduce

1. Open a project in the editor.
2. Split a clip in the middle.
3. Delete the segment to the left of the split.
4. Drag the remaining right-hand clip to the start (position 0) to close the gap.
5. Play back from the start.
6. Around 5–6s the playhead freezes and shows pre-cut footage instead of the moved clip's real content.

As a workaround, trimming the clip's in-point in place (without repositioning it on the timeline) avoids the problem and exports correctly.

Environment

• OS: Fedora Linux 44 (GNOME, Wayland)
• Recordly: v1.3.3 (Linux x64 AppImage)

[ddavidbailey]

Same exact issue on M3 Pro on Tahoe 26.5