Technical issues and problems with WoGa.

Another interesting thing: If you play with "Extended Hero Specializations," some heroes have a specialization that allows them to cast a spell on all enemies at the beginning of the battle (in most cases, this is unsuccessful). Adrian (or whatever her name is), a hero from the campaigns for the Fortress faction in The Restoration of Erathia, casts "Curse"... Notably, it affects absolutely everyone, including those who are immune to it, such as undead. I can't call this anything other than a bug.