I've had a tactical combat stuck upon a failed enemy 'summon' ... I can't recall for certain now, I think it was a failed summon of an assassin demon. The casting unit was stuck, the summon didn't complete, I wound up having to auto-resolve which caused most of my units to die (which sucks as my tactics of surrounding each one at a time, pulling back my weak units and healing them was winning without costing me units :/).
