For some reason the Researcher can no longer use the Research stations. One day it was fine, the next it wasn't. This also happened in a previous game where the dupe couldn't use Novice Research Station. The tree can't be completed without using research so it's a game breaker.
The station doesn't need any resources, the priorities are correct and have been the same through out the game. It just suddenly stopped working. Any fix to this glitch would be great.
I tried loading a previous save file from when Novice research was working, and it immediately stopped working. This is the second game I started where this happened. I have included the previous sav from the other game where this happened.