Version 16.0.1 x64
Working on an existing document. Nothing out the the norm. Just basic single-user InDesign. Upon save, it said the "document needed to be repaired and some unsaved changes might be lost". Well it lost everything and I lost 2 hours of work. I think InDesign is becoming like the old Quark XPress where you had to hit Ctrl-S like a rabid monkey to save your work from loss.

The other thing is lately InDesign crashes on startup.