Videos (via Playlist and Queue) Not Starting for Anyone Except Host/Owner
Setup in this instance is Playlist > Queue > Player in case it's relevant.
As host/master (may or may not be relevant) starting a new video loads and plays fine for me, but it doesn't play for anyone else in the world. The video player changes to the new video for them (at 0:00) but doesn't actually start playing. Having those users hit Reload correctly loads and plays the video.
However, this does not happen if you interrupt a playing video to switch to a new video - in that case it correctly starts for everyone. It's like a stop is being fired when a video ends and no "start" is ever issued again for anyone other than the host/owner.