As of a week or two ago, somewhat frequently I press play solo, and there is no option to end the session. The only way out is to close studio entirely and then reopen the place. Luckily, I’m using team create, but in a local file there would be no save. I don’t have any specific repro information.
Edit:
At this point I’ve resorted to actually playing the game every time and publishing it, it’s a massive pain having to close and reopen studio.