How to reproduce:
1. Open the attached “IN-141491_timeline” project
2. Open the “Timeline” Scene
3. In the Hierarchy window, select the “NewTimeline” GameObject
4. In the Timeline window, double-click on the “Framerate10*1” timeline
5. In the Animation window, click play
6. Observe the Animation window
Actual result: The playback cursor goes beyond the end of the clip
Expected result: The playback cursor stays within the bounds of the start and end of the clip
Reproducible with: 6000.6.0a3, 6000.6.0a4
Not reproducible with: 6000.0.74f1, 6000.3.15f1, 6000.4.6f1, 6000.5.0b7, 6000.6.0a2 (64de5ee36373)
Reproducible on: Windows 11
Not reproducible on: No other environments tested
Note: When playing the “Framerate60*0.166…” Timeline from Unity Editor version 6000.6.0a3 the playback cursor is also noticeably choppy