From what I can tell it is the secondary attack that is crashing the program. If a water elemental hits with attack, the secondary is the cold attack when trying to resolve this attack it crashes, whether already having a cold attack preset as an attack or changing the information on the attack from the original after saving the attack, to generate the secondary Critical attack. This has caused me about 5 reloads of combat for a water elemental. Also when going into a new combat it Rests everyone to full hit points and Power Points. This is weird due to not choosing to heal the party separately.