I had this happen twice now. Once I was able to bring the game back up with a save game and then finish. The other game I couldn't. What sucks is you spend hours in a game and this happens.

However...I may know how to recreate the problem and I will try to break it again when the same thing happens...

I had no war ships built and someone figured they should attack me. Mind you I am new at the game...only had it for a few days. When the sent their ships, the Yor, at me I started buying defenders each turn. Well as their ships started attacking one of my planets after the attack I went in and selected the ship to buy and purchased it. I hit the turn button real fast after that but I'm not sure the Yor was done attacking me...they attacked again and I went to try and by another ship but I was not able to yet...like the turn was not over. So I went to click turn again and it was gone.

I'm not real sure of what order I did things but it seemed to happen the same way twice with what I can remember. This is with DA all patched up.

hmm..I'll need to try that...didn't think of that.