Context: Galley display, scrub playback, move playhead from left to right, Look what happens when it reaches the right edge of the screen.
Observed behaviors:
- Scrubbing by moving the playhead by touchpad, when playhead reaches the right side of the screen, scrubbing does not proceed either audibly or visibly, it just doesn’t go anymore.
- Scrubbing by moving the playhead with right cursor arrow, scrubbing DOES proceed audibly but the display not updated, after the playhead passes the right side of the screen, the region that is playing is beyond the right side of the display.
Expected behavior: Auditory and visual, the score should scroll automatically in scrub playback just as it does if the user presses right cursor arrow repeatedly or activates Play, and the portion of the score where the playhead is should remain visible on the screen.