In this save you will see Research and the Spell of Making set up to both finish on the same turn. This caused the Spell of Mastery win movie to start in sound only, for a brief second, then the research window opens up, it does not allow you to pick a research option (what more do you need to know, you just won the game!) or exit out of the screen. Repeatable. Save: http://dl.dropbox.com/u/74993502/Bug_Spell_Making_01.EleSav
Had it happen as well, with a few twists. Attempt 1: Twas mid-game and thinking my heroes unstoppable; I fell into his pit (some lair looking building, he was not "spawned" it seems) to be greeted by this bug. Auto combat thoroughly destroyed my team. Attempt 2: I return sometime later with improved heroes of old (instead of a building graphic, its now a graphic of the worm) to try the auto-combat roulette. It gave me the auto combat option window this time, I s
I'm sure its been noticed internally but I didn't see it listed. Spies can summon more spies making a instant spy army as long as you have the 1 mana to cast the spell. Granted it still costs upkeep, but you can disband the first master Spy and it will make the rest disband as well. It's MAD. I haven't tested making an imp army yet, but I believe they were spell casters in the old build as well.