Outlook crashing after its latest September update

We are using Office 365 (Monthly channel, 2016). After the recent September updates to Office, Outlook started crashing for some users when trying to sort emails by From, or other columns. If we uninstall Symantec Endpoint Protection, it stops crashing. On some PCs it even shows that Symantec's add-in has beed disabled because it caused a crash, although Outlook still crashes in such case.

We are still using 14.0.1 - (14.0 RU1 MP2) - 14.0.3929.1200 and were only planning to start testing 14.2. I think 14.2 still came before September 5, when new updates for Office came out. But maybe it's a known fixed issue? I have only filed a request with Microsoft so far. They are investigating.

Happens both on Windows 7 and Windows 10.