Minmir Keep ((Minmir (Hills)) Upper Tower Invisible Wall?

[xXxPancakesxXx]

The issue:
When trying to walk to the edges of the upper-most tower of the Minmir Keep, there is a side with an invisible wall that prevents the character from walking ot the westernmost edge of the wall. When standing completely against the walls, LOS is blocked and spells are disrupted despite being able to see and highlight objects on the ground floor with TAB.
What I expected to happen:
Be able to walk to all areas of the uppermost tower and cast spells from the tower.
What actually happened:
An invisible wall prevents the character from walking to the westernmost edge of this platform and LOS for spells is unreliable.

[Twohand]

There’s a doorway just at the foot of that tower, and since NWN can’t have overlapping walkable areas, that tiny walkable part behind the door effectively serves as an invisible wall on top of the tower. I notice some room for improvement and will look into it, but it’s not a bug, just the way the original team behind this tileset decided to design it.