Playing 0.7 with 2.1.4 patch, AI ( Especially North AI but Dorne and Tyrells also having issues ) seems to not send his troops to some places within its realm. Another problem i frequently see is that AI moves its forces from one region to another but it constantly cancels the movement order and marches its forces again few days later, only to cancel once again. Final problem is that AI sometimes disbands-reraises its troops constantly even though it didn't lose any portion of its forces.
I know AI is not moddable in CKII but my observation is that these issues are not generally seen in Vanilla gameplay. May be, something breaks AI in AGOT in certain conditions. The first thing coming to my mind may be higher travel times compared to Vanilla. I thought about big realm sizes too but HRE is as just big as any LP but doesn't have any such issues.
I know AI is not moddable in CKII but my observation is that these issues are not generally seen in Vanilla gameplay. May be, something breaks AI in AGOT in certain conditions. The first thing coming to my mind may be higher travel times compared to Vanilla. I thought about big realm sizes too but HRE is as just big as any LP but doesn't have any such issues.