I have an interior wall I am trying to fit to the underside of the ceiling. I use 'Fit walls to Objects' and try to select the ceiling (which is a roof style) and have clip walls selected but it does not help. When I try to 'Associate this wall with the roof style' the ceiling pulls away from the outside wall and aligns with this wall, which I do not want. See image. What am I doing wrong and how to fix? Thank you in advance.