Again you can use the report the mod generates to figure out what's wrong. The only ones you really need to deal with are assets listed as Broken by the Loading Screen Mod. And sometimes it's actually a good idea to not get props or trees to save memory. If you want them, the Loading Screen Mod makes a handy list with links, but the buildings work perfectly fine without. Most of those (if not all) are just props or trees that were used to decorate buildings. Missing assets shown when you load your game (when using the Loading Screen Mod) isn't actually something you need to worry about. It'a almost always mods that act up, because they change how the game behaves and so need updated when the code they affect has changed. The wast majority of assets are just fine and never need to be updated, so it's highly unlikely your problems are related to assets.
