1- Create a timeline
2- Add the attached package to the project (contains two files for the code of the marker, the code is also in the bug description)
3- Add `CustomMarker` to a track
4- Add multiple empty tracks, in order to make a scrollbar appear.
5- Move the scrollbar downwards and check the marker.

Result: The marker is drawn on top of the time area and timeline marker track.
Expected: The marker should not be drawn on top of the time area of timeline marker track.