Here we are a day after Microsoft updates were released and I start getting phone calls of Outlook crashing for some users. I’ve seen it on both Outlook 2013 and 2016.
I don’t have full details yet, but for now the quick fix is to uninstall hotfix KB3097877 and reboot.
From what I’ve read, it seems to only affect those who have the reading pane enabled. Hopefully MS will issues an update for this update soon!
EDIT: This was a short lived issue. Microsoft has released an updated patch under the same number that does not have the issues.