After having added an image and began processing, then Canceling, the application gets caught in a ‘loop’ with a spinning ball. I then must Force Quit to exit the application. Have others encountered this?
No. How long have you left it spinning for before you chose to force quit? It may be because the GPU cache has a lot of information to clean out, so needs time, if cancelled late in the piece. Not that I know a lot about this type of stuff, lol 
Just like to think I’m smarter than I am. 
I think I had the same problem with the previous version. After a couple times I just let the program (AI GigaP) run and went off to practice the piano. Yup, it finished successfully. I never left the cancel spinning ball go ‘forever’, so I don’t know whether it too would have eventually completed.
I can’t say about the current version. It won’t run at all.
