Yeah so that happened.
First time this happened to me on february (can't remember the version back then) in a place in the game when I had operation End Game ready to go, but decided to do some extra missions just in case. Game stuck on alien hidden movement and every time I reloaded the game, it started alien turn from the begining and got stuck after few aliens had moved. Mouse moves and the music keeps playing but nuthing...
You prolly can imagine how livid I was that 2 weeks of gaming GONE.
Well I got over it and decided to wait until proper release of the game. Now today after 5 hours of gaming the same thing happens! Jesus I'm angry!!
The first time it happened I thought ok, you played unfinished version of the game in Ironman and stuff happens, but now the game is supposed to be complete, fixd, launchable??
Do. Not. Play. This. Game. In. Ironman. Mode!!!!