[General] Patch 1.31 AI doesn't use spells?

[Henry_AC]

Hello everyone... I was testing my custom map (altered melee, with patch 1.31), and noticed that the AI doesn't cast spells, with heroes (units if they use it...I think), I was researching and it seems to be a bug in the game, now it seems like there is a solution with triggers, but I am too clumsy to create them. I also think I would have to apply it to all heroes (what I have to do, uff).

Does anyone know how to create it?
Please help