With all due respect, I hardly consider this issue "solved." In all the years I have been updating Vortex, never once did the app freeze up for 20+ minutes after restarting. Had I known this was expected behavior, I obviously would have never force quit. This lack of communication regarding a quite invasive update is the root of all the chaos that has followed. How can a Vortex user ever again trust that an update notification won't lead to a ransacked load order and ruined game saves?
And the problems continue, I might add. Upon exiting the 1.9 version I rolled back to, I got a notification stating (not asking) that the newer version would be installed. I allowed Windows to proceed in order to see if I might have better luck on the second go round. Oddly enough, upon restart the app was functional in only a few minutes after clicking the prompt to deploy. However, since that initial session, the app now hangs indefinitely at startup once again. Even after giving it well over an hour on two separate occasions, it never enters an operational state.
So, now I must re-rollback to the previous version just to see my modlist and assess the damage, making sure to have Windows cancel the auto-update that occurs every time I exit the app. Or I suppose I can wait for the next update and hope it renders the app functional again. Either way, I surely won't be playing my modded Skyrim anytime soon.