I am a fairly new player in RSS/RO and RP-1. I have downloaded the mod CH4 from GitHub and manually dragged it into my GameData folder. I am encountering quite a few problems with getting all of the engines to appear in my VAB for some reason. A few examples of these engines are the AdvancedOTV engine, the Merlin2 engine, and I could go on. Only a few of the engines seem to be appearing in my VAB, for example, the E2 Vac and the E2, and I do not understand why the other engines don't register or appear. Any ideas of why this could be the case and how to fix this issue?
Thanks to anyone in advance.