MacOS 13 worked perfectly for me. Since upgrading to OS 14, Safari will no longer play back online videos. Trying to play a video from either YouTube or Vimeo causes Safari to seize and the only way out is to quit. I don't have that problem in Firefox or Chrome. I have an M1 Mac mini. I don't have any ad-blockers installed. This is the first time I've seen this behavior in Safari. I did clear my cache and history, and that had no effect. Has anyone else experienced this?