So.. I recently got to download and play around with this mod but doesn't matter how much i try there's always pieces missing.. In the sense that.. For example the inertia drive,, emergency piston,, some of the seats from the mod's thumbnail,, they just don't exist.. Doesn't matter how much i try to find it or subscribe to the mod.. I got no idea why--

Weirdly enough,, it did show up like.. Once then it stopped working..

My game is not outdated,, but i think the mod might be.. Can anyone help with this?
[thanks to anybody that may respond to these dumb questions]