Queen – “The Trap” [Campaign 1, Mission 4]

A strange bug occurred on this map; it didn't significantly hinder my progress, but it was surprising. Before I even reached the Grove, armies of devils and thanes/jarls appeared everywhere, seemingly out of nowhere, with about 5 units in each army. And when I reached the Grove, the same thing happened: armies of cyclops appeared in empty spaces, and the map started to lag noticeably, probably due to the excessive number of neutral armies. I tried to ignore it and only dealt with the ones in my path because fighting all these creatures with an army of peasants would ultimately be too costly, as they would inevitably eat away at my forces. Otherwise, there weren't any major problems.

This doesn't happen on other maps; I don't know why it happened specifically on this one.