Inside sequencer_main_cursor, the logic for showing a custom cursor was already ignoring the time scrub ruler area, and not showing the strip edge resizing cursors. However confusingly enough, actually clicking there was still going into the ED_sequencer_pick_strip_and_handle which found a strip edge and returned it. Modify ED_sequencer_pick_strip_and_handle to return empty selection when mouse is inside the time scrub ruler. Pull Request: https://projects.blender.org/blender/blender/pulls/132891