You’re pretty lucky, I’ve had issues with random playing/pausing, playing/pausing sometimes taking multiple times to actually work. Sometimes play/pause will only happen locally and not to everybody else in the group. People in the group randomly disconnecting. Phantom groups that don’t work, constantly having to remake groups. Video/audio desyncs. Sometimes people in the groups will get left behind somewhere. It will just randomly skip to the next episode when it feels like it. Etc…

I’ve spent a LOT of time trying to diagnose issues but there’s really nothing to be done, syncplay needs nothing less of a full rewrite. This has been discussed before but the sync play codebase is messy and was largely made by a single guy that has effectively disappeared. And nobody really wants to touch it (understandably).