Hi! Hoping someone can shed some light on my issue. I'm trying to create a pony wall (or furred wall) to insert plumbing into and provide a shelf. However, every time I bump the pony wall against the left-hand wall, it impacts my ability to apply paint. If I remove that pony wall that is under the window, then it fixes my paint issue. I have reset the wall material to the default drywall and made sure there is no wall covering, but still is will not let me paint this section of the wall. You can see the two different tones in my image, where the top section of the wall added for the vaulted roof is painted and the bottom section of the wall is not. It will not allow me to paint the bottom section. Any suggestions? Thanks so much!