@JNarz19
Ok, I did have a little time left this evening before I head to bed, so I went ahead and downloaded it. I did manage to find it - not hard. And even found a fix. Something very simple. It was the roof trim after all. All I did was change the roof trim to another and change it back to one you used, and it went away.
It's always a good idea to have complete ceilings. Less problems I've found. And you're probably right. The premade builds do have some interesting issues, particularly the ones in earlier expansion packs. If you really want a challenge, try remodeling Discotheque Pan Europa. 😃 I won't spoil the surprise, but whoever built that one used some techniques you don't see every day, if ever.
And no need to mention me in your rebuild upload. That's very kind but no need. I'm glad I could help. You have fun!