Crash on Murder Investigation [Can't reproduce]
I just played a game where I had Murder investigation in play, with one normal creature (1st) and one soldier token (2nd) on the board. My opponent had one angel token creature (with several reinforcements) with vigilance in play. His toughness and prowess outnumbered mine. During combat both creatures died. They were visible as 3/0 and 1/0. My first creature was removed and a second 1/1 instance of a soldier token appeared. Then the game freezes for a second and then closes.
There is one report about a similar bug present on these forums, but that was dismissed as not reproducible. See