It appears that any time I edit a script in the place, that the playsolo button gets greyed out, and can’t be used for the rest of the session until studio is re-opened to it. I received the place from a friend, where I then saved it to my jump-drive, and I work on it on my laptop during business trips.
This PC goes into standby and offline a lot, so it could be related to those, but it’s weird that it won’t let me use playsolo in a saved place for such a weird cause as opening/closing a script
I actually had it occur after I had two open, and closed both, and re-opened only one. Not sure if you’re aware of that as also being the case, or if it’s even relevant.