My custom station's textures

So, I'm still pretty new to NL2.. But I recently created a custom station and I imported to the game fine. But, when I placed it into my park or whatever, some of the textures were missing even though they were all in the same folder. I tried it in both .nl2sco and .3ds formats and the .3ds format had little to no textures. Please help..

[TallonD83]

did you make it in sketchup? select the missing parts in sketchup and tell it to reverse faces