Assuming I'm getting the same problem as jpinks, the symptoms aren't the same as for the v0.262 lockup. This one (v0.32) doesn't seem to be particularly associated with any action, and it's never actually happened for me at the end of a turn. One time it was when I was just scrolling around the map, the other time I was looking at the research screen, and the third time I think I was looking at my sovereign's detailed info screen. I don't appear to be getting a memory dump.
Debug.err
Edit: Forgot to mention, it seems to happen pretty consistently after about half an hour of playing. I've not actually been timing it to see how long it takes, and I haven't tried just letting the game sit there doing nothing for half an hour to see if it still locks up, so this may just be coincidence.