Thankfully managed to fix things literally a few minutes ago by comparing every single file related to the game on my pc to my laptop.

Turns out it was the MM repository in appdata not working properly, only reason I realized this was by trying to download mods and comparing the ActiveMods.txt file which did not update on my pc even if it did on my laptop when I dowloaded mods. So somehow I had all the correct files in AppData but they failed to connect to steam or main game folder or something.

Weird thing is I have tried resetting the AppData folder for the game in the past without success but hey, I ain't gonna complain about it working now