Stud.io stopped saving/opening files

[NathanR]

I updated to Stud.io 2.22.9(3) this morning, and now I can't save or open any .io files. I'm running MacOS, and whenever I try to open or save using the file browser I get the spinning beach ball of death and have to force quit the app. Curiously, if the file appears on the "Recently opened files" list on the startup splash screen, the model loads fine. Also, as I write this, I find that just moving focus away from the Stud.io app causes it to become unresponsive and generate the spinning beach ball.

Does anyone else see anything similar?

Are there MacOS security settings that I should have updated?