There is a bug when I begin a fight with my mage using the lightning strike skill ( I mean casting the spell while not in combat mode ). The combat begins but the mage is unresponsive. Other chars work normally but the only option for the mage is to end turn. He is still stuck when the combat ends.
I think that the game is switching to the combat mode before the end of the execution of the skill and the "using a skill" flag for this character is not reset.