Ok this happened once but I was just looking at my planets and hitting next planet button and buying stuff and clicking for my next turn too. My tech victory was coming up and I popped out for a sec and one of my planets was getting invaded. But heres the wierd thing they had 0 troops attacking... and I was slowly losing guys and like 40 attacks later I was stuck on 0 vs 10 troops it just looped the battle over and over(lost the battle and I started with 0vs10 again...). I had to restart my pc. I reloaded the game right before this point. And that time it didnt happen. Sorry to say I was an idiot and deleted the save. So sorry but just wanted to throw that out there and again sorry for be retarded for not keeping my save and sending the build. But that was the wierdest bug ever... I just downloaded the new 1.7 update. When this happened it was in the previous version. Need anymore info I will message you.