Bug in Commander Mode

First: I am Loving this program it is an excellent source for testing decks before table play. Thank You.
Bug: AI player has -1 life and freezes game at their turn "waiting for player" cannot concede or anything have to shut down program. (if this is known issue I apologize for redundancy)
Bug: AI player has -1 life and freezes game at their turn "waiting for player" cannot concede or anything have to shut down program. (if this is known issue I apologize for redundancy)