In all the time that I have spent playing KSP I have never experienced anything like what has happened today. I was driving blithely along the surface of Eeloo when the game appeared to freeze. At first I suspected a game crash. However, on further inspection, the game was still responsive. (Although none of the keyboard controls seemed to work.) A few seconds later I could hear explosions as my rover (apparently continuing on without control) crashed into the hills.
Does anyone have any idea what may have happened? I know that kraken-strikes are more common in the farther reaches of the kerbal system. Was this one of them?