AI Defending Fortress Map does nothing

Hi! I play on Windows 8 the latest version. I love playing as Mordor. But when I either play War of the Ring or Skirmish and I attack fortress maps like Minas Tirith, Dol Amroth, Edoras, etc. The AI does nothing, the builders just stand there doing nothing. Sometimes they build a farm outside the castle but nothing else. I think it is a major bug cause makes literally unplayable the War of the ring attacking Capital Territories like fortresses.

Does anyone experience the same issue? If you don't cant you tell me how not to have it?

AI doesn't work well defending Fortress maps unless heavily scripted. Fortunately there will be several Besiege maps in the next release in which you attack a fortress defended by a scripted AI, which is very competent at defending.

Thanks for the reply. This change you are referring will effect War of the Ring mode?

The Besiege maps are not part of WotR, they are in Skirmish mode.