A bug in the 5th scenario during the siege of the first castle manifests as follows. We fight only with archers and monks, and, of course, with a ballista. We kill almost all the fire elementals (leaving 3), mages, then we speed up, then we kill the air elementals, djinns, gargoyles, and finally, Andrius kills the remaining fire elementals. That is, the mage doesn't have time to recover and summon demons, and as a result, the game "freezes".

Added 3 minutes later
Yes, I forgot, he's a jerk - he took away 5 levels from me. Is that how it's supposed to be?