Hey, just wanted to chime in that I experienced it today as well - actually between running it, setting up some new tables in Game Manager, and restarting it. Which made me think I did something wrong (besides adding tables I increased the attract mode times to 2 minutes in Setings). The author mentioned in that referenced post that it was a 'bug' in the installer and was going to be updated. Is that still the case?
I tried to do an over the top install but no dice. Since I did have the latest version installed a few weeks ago, installing that same version didn't seem to do the trick. Guess I have to uninstall.
I understand that the software is free and I'm totally appreciative of the effort (enough to at least sign up for a basic membership for a year), but it is a wee bit o'hassle, at least from the standpoint of being automated for the kiddos to just turn on and go play some pinball. I caught it this time and it is no big deal - just wondering how often this might occur. Not that I'm complaining!
Unfortunately I keep my cab online since Steam doesn't want to play nice and always shows a prompt to start a game in offline mode even though I ask it nicely not to (e.g. starting it and going offline and restarting, no internet).