9.5 - Mac GUI lag when zooming with video thumbnails in the session.


  1. Open any session with video, or add video to a session.
  2. Make sure thumbnails are enabled.
  3. Zoom in and out, and you will experience very jerky lag.
  4. When you delete the video track or delete the video from the timeline, the lag goes away.
  5. Also, if you disable thumbnails, the lag goes away.