This is an old bug where the clip's start and end points are shifted relative to what is selected in the editor. The client sends correct offset/duration data but on the server side the fractional part is discarded.

Steps to reproduce:
- Open the clip editor.
- Move the start point to the very beginning of the timeline and then shift it slightly forward by less than one second.
- Extend the clip to one minute and slightly move the end point, for example, to a clip duration of 59.9 seconds.

Result:
- The resulting clip has a duration of exactly 59.0 seconds and starts exactly at the beginning.

Previously, it was possible to create a clip with some margin and then edit it to get an exact clip. However, after a recent editor update, the editor always loads the original 1.5 minute segment, making it impossible to create a precise clip. Additionally, the API shows the correct clip duration, and if you reopen the editor the preview will be correct. This means the bug affects the final render only.