Game Crash in Kaom's Dream - blocked progression

My game crashes every time in the Kaom's Dream campaign map and my progression is literally blocked. Sometimes it happens in the first few seconds after I start clearing the zone, sometimes it happens later, but it just never lets me clear the zone and progress further.

I tried clearing other zones and it worked fine, this is the only one that crashes my game. I also never had this kind of crashes before this patch.