Just found a really weird one doing co-op
Setup:
Co-op game i'm the joined player friend is the host.
Full party with each human player controlling one ai
In combat
Spider Summon
If the spider dies during combat for some reason control of the hosts Human player is automatically relinquished to the joined players. If he then tries to reassign control to the host while i have the character selected he loses all ability to contorl that character
Super freaking weird.
