The same issue was faced on me with the 2308 version of Outlook.
And yes, I've noticed this after the recent updates were applied on some machines in my organization, whereas non-updated computers are working fine. I'm not sure what the exact Security Pach number but knowing that this thing was informed a while ago and still exists is quite frustrating.
All the advice I could find on the web somehow follows the app or registry modifications, which is unacceptable.
So, this is it - Waiting for the next "buggy patch" seems to be the sole solution, isn't it?