I am running Yosemite (have been for months), and it is working fine here. Version 4.3.2.2.
chas_m, did you upgrade or do a fresh install?
I know I didn't delete it, but also I remember now that with Mavericks, apps I'd have installed would vanish without a trace, so perhaps this is a carryover from Mavericks that caused it. I last used LibreOffice yesterday. I have no idea, but I hope Apple fixes this problem.
Unless my SSD is crapping out on me, which I guess could happen.
Do you know of a way I could check my SSD health, that is free?
ETA: Hmm I decided to check my Trash and lo and behold, a few apps are there! What?! WHY??
Gimp and LibreOffice are there.
I am still able to open Gimp though. I installed it to my external USB drive. And it's opening. So odd.
LibreOffice on the other hand is trashed, so I'll put it back. Freaky.