I’ve noticed this has been happening recently
It happens occasionally at normal places – it tends to happen more when I get disconnected for idling for too long, but it also happens 100% of the time at my 100-player place:
After I close the ROBLOX player with the ‘x’ button, it never truly shuts down. I can hear sounds in the background and I’m still technically in that server. If I shut down the server, the process is still running.