I'm finding Illustrator isn't saving every time I save documents, the last approx 3-4 weeks I've had to re-make approx 15 files that I had previously saved. Running Illustrator 24.2.1 + Windows 10 Pro (1903) but problem existed before this update. My co-worker is having the same issue. I've held off reporting it as I cant explain the mechanism for why it's only happening occasionally. would love a fix for this, was hoping the previous update would somehow fix it but hasn't unfortunately.