I fixed it by uninstalling the toolkit and the game, removing all D:OS files and reinstalling the game.
Before i did this i had tried verifying local file, creating a second profile and running the .exe files as admin etc and none of that worked.
I cant have the toolkit and the game installed if i want to play the game..... its quite annoying tbh

When i installed the toolkit, i followed the instructions on how to set it up from the steam post. I didnt ever load the main campaign, edit it or change anything to do with it at all. I made a new module and that was it. I did nothing more as i wanted to play the game first after making sure the toolkit loaded etc.
Any idea how i can fix this??
Thanks