I keep having issues with VRC where I'd join a world and then avatars will just stop moving, but I can still hear their voices and see them animate. Sometimes happens with as few as 5 other people in the world. Respawning doesn't fix it. Returning home and coming back to the world sometimes works, but more often than not I have to restart VRC. 
Any idea what could be causing this, or what I can do to try and fix this?