The information in this article applies to:
My wall connections had looked fine, but then I changed something and now they no longer seem to connect at the correct layer. How can I fix this?
If you have recently modified your wall types, you likely accidentally adjusted the Main Layer.
In most circumstances, the Main Layer should be specified as the structural layer of the wall, particularly when the wall is a framed type. The Main Layer determines many things, including at intersections, walls join at the interior surfaces of their Main Layers.
For some wall types it is also important that the main structural layer be comprised of multiple materials. If this is changed then it can cause issues with wall intersections.
To ensure that your wall intersections connect correctly, adjust the main layer as needed for your particular wall type. For example, a standard wall will have a single structural layer made up of stud framing. Or, as you will see in this article, an ICF wall will have a structural layer made up of 3 materials.