Soulstorm. Necron AI bugged?

Kalsonic

Hello everyone. Recently the skirmish AI for Necrons have been playing out. They're not as aggressive early game when capping, teaching up feels slower than usual, and all 'Support Cap' units were ignored by the AI after it was built (so they're just floating there).

Does anyone know what could be the problem here? I've modded the game, but it's only minor changes (hit points, damage output).