This happened last night, so after a few attempts to refresh & restart, decided it was bedtime & shut everything done.
But just restarted & logged into the app again, and went to upload an image that I’ve etched before many times (but not saved in the library, which I reconfirmed before trying to upload).
Got the standard error message that something went wrong loading the file–but then had a flash of a giant circle with an “i” in it, then a screen of some error text (not any of the error message pop ups) and then the home screen–but just one fuzzy line.
I just tried to capture a print screen, but hit refresh, which did work to reload the home screen. Just uploaded another image, which did render OK and is showing on the GFUI–so maybe something did happen to corrupt my other file since I last used it & the error message system goes whacko?
And just maybe figured it out: I was trying to open a .bmp version of the file, and another jpeg was OK (etching it now). Have deleted that “bad” one to make sure I don’t try to load it again!