I'm not sure what to tell you, this is the first I'm hearing of an issue like this. Here's a couple of things it might be a good shout to try:
- Try re-installing the mod. Make sure you have it installed correctly.
- Make sure the filename is correct. If it's named "Assembly-CSharp (1).dll" or anything like that, the game will not pick up on it.

ok so i re -read the instructions and looked all over my game, and it turns out that the instructions say 2.17 B but instead im on version 2.17 C, but im confused as to how i could change this.

How do I download the C version?

but the mod only works on the B version, not the C version

Originally posted by gimble:

ok so i re -read the instructions and looked all over my game, and it turns out that the instructions say 2.17 B but instead im on version 2.17 C, but im confused as to how i could change this.

Ah, I forgot to update the description again, did I?

For future reference, you can check the changelogs for a 100% accurate indication of the version that this mod is compatible with. I've just updated the description, as the mod is currently on the C version of the game.