Couple of bugs I'd noticed:
-Missing a clear texture for some elven buildings in orc settlements (attached a pic)
-Dunleding (Rohan Axe) and Dunleding (Rohan Spear) both are missing a texture for their thrown weapon while they are holding it but before it's thrown (just gets a straight black texture in that instance)
-Dwarven forts (not settlements, just the forts) stone walls, while awesome looking, are very buggy (attached pic 001)
-Barad-Dur walls and gateway apparently are not connected (troops cannot cross over the top)
-Fellbeasts try to attack settlement gates but can't actually do any damage to the gate
-Invisible walls all over the place in Moria that block missiles (attached a pic)