Hole in foundation wall below wall above

[allopher]

I am trying to create a projection from the first floor of a house. The projection is adjacent to a lowered entrance and I want the projection wall to be flush with the edge of the lowered entrance. Unfortunately, when I do this a hole is created in the foundation wall where the entrance abuts the projection. I can 'fix' the hole by putting space (eg a railing) between the projection and the lowered entrance but this is not the design I want.   I can't imagine this behavior is by design.  How do I get the edge of the of the projection to line up with the edge of the lowered entrance without creating a hole in the foundation wall?

 

Attached are 2 pictures, one showing the floor plan and exterior view with the hole and one without. Note that the lowered floor is in light yellow, to the right of the projection.

 

I'm using CA X10 on Windows 10.

 

Thanks

[rlackore]

it can be very difficult to get Chief to "behave" the way you expect/want when walls intersect at different levels and at angles. You can try playing around with the wall intersection tool, or you could "patch" the area with a p-solid or something similar, or you could post the plan and maybe someone else can find a solution to your specific situation.