Ultimatum causes random crashes.

Having played the league for a while now and been trying out Ultimatum this league, I found myself surprisingly often crashing in Ultimatum.


The rest of the game I don't really appear to have any issues with, but ultimatum fairly often results in the game freezing up for about 4~ seconds before then just crashing to desktop, which is obviously very frustrating since it auto-losses the encounter.

I'm having the same issue, but only with the "Stand in the Circles" encounters.