Haven't used the software in a while, I started the program & checked for updates for the pro 3 version of studio 1. I got a confirmation of up to date, then tried to x out on the home page. Th circling beach ball appeared and locks up studio one .
The rest of the system works but studio one was locked up, only a force quit & reboot would resolve the problem..
mac os 10.14.6 Mojave