Bug: placing mouse cursor over defeated civ's ship causes GUI lockup requiring hard reset of game. Computer does not lock up.
Game version: game started in 2.32, updated to 2.34
Description: small civ who I was at war with (and took 1 planet from) is defeated by my buddy civ. Their ships turn white but no longer have a civ icon. No big deal. Later on, I mouse over one of their ships (possibly while already clicked on one of my carrier fleets) and the UI stops. The game is still running fine - no music skips, no graphical freezes - but the UI no longer works. I can move my cursor but that's it. I can tab out and end task thankfully, but reloading a max map size game is painful. 
I'll try to submit the game save for this later tonight.