Strange wall sticking out

[Anonymous]

I asked about this before, but no one replied .

I am using two complex profile walls, and a profiled sill plate in between( it's nothing but a plate, except that I added an 'X' to it ), as well as a composite slab. I want a layer of stucco on the rim board and sill plate as to cover them up. what I get is this weird intersection. I can't make out why it has to stick out like that, but it seems that it's related to my profiled walls. I have no solid element operations on them.

Anyone got an idea?

[Anonymous]

This is what's under the stucco.

[Anonymous]

Here's the 2D look of the stucco layer, it seems as if they don't intersect.

[Anonymous]

Some spot ideas:
- have you checked the junction order in materials?
- try the same intersection at ground level linking elements to the level, does it appear again?