Hey there, first time I've ever tried downloading mods for KSP. I noticed this one was updated for the more recent version 1.4.5 compared to the older versions (thanks for the update btw).
However I can't get the Real System to run correctly.
I've downloaded [1.4.x]RSS from the CurseForge website;
Kopernicus from the link in your Description;
and finally i've donloaded [1.4.1] Module Manager 3.0.7 from its Forum Link that was also in your description.
I extracted the files and added them into the GameData folder so it looks like this after the game has launched: GameData
After i fire up the game, it lets me know while loading that module manager "managed" 462 patches. Afterwards I get the error that Kopernicus didn't load due to an exception with module manager. When i tried other methods such as deleting RSS texture file, or placing the whole RSS folder into game data without pulling them out, the game will load into an infinite Loading screen with the main menu theme playing in the background.
So that's where I'm at, Infinite Loading Screen before Main Menu, or Kopernicus didn't load due to an exception.
I'm running 1.4.5. and I REALLY wanna run these badboys with Principia and some other realism mods - Since Realism Overhual i think works only in 1.3.1 but some of its mod add-ons have updated beyond that.
Thanks for updating the RSS mod OP