My coworker told me to put my presentation in OneDrive so she could do some edits. Never got those edits... but when I sent the file to the MC of the meeting (which they didn't tell me I had to do until I was literally about to step into the board room) it rolled back to an old version without warning. Burned through a lot of my presentation time trying to fix it before just going ahead with the unfinished version which had casual placeholders. I was thrown off and sweating and out of time and it was just not good. The board was nice and seemed to pity me but I know it was bad.

I had a moderate crash out on the way back to the office but my boss said not to worry about it so just trying to move past it.

Lesson learned: fuck OneDrive. I'd heard horror stories but didn't listen...