I think GF have been having issues today, I’ve had all sorts of variations on that today, with both the software and machines disconnecting at times through the day.
I received the same error message this morning at approximately 10AM ET. I assumed it was because I was trying to upload artwork that was on a .webp file extension but maybe not now that I’m seeing several of you with the same issue.
Does .webp even work with Glowforge? I can’t open it in Photoshop or Illustrator.