Complex Mass Model Misbehaving When Attempting to Create Walls

[Dean Death]

Hi, I'm trying to create a structure for a school project and I'm having issues with the walls not following the contours of the model. I've tried to do a lot with this and I can't seem to get it to work. The wall profiles can't be edited because they're curved on multiple planes and extracted from the model. The model itself was created in AutoCAD 3D and exported to a Revit Mass family so that I could use it. Most of the other walls with very complex contours don't have this issue and follow the model perfectly. I've attached example screenshots, I have no idea how to fix this.