Invisible Research Tree, among other things...

[theNaturalHeart]

After returning from a mission mid-game and full of joy in expectation to spend those 500 freshly earned science-points, I noticed that i was not able to do so:

After clicking on the research building, the respective music appeared, but i was still able to see the space center. exiting the facility was only possible by spamming the red exit button top right. The mission control center was still visible but flickered heavily on certain unidentifiable mouse-movements.

I tried verifying the game-files and re-installed the game about four times, nothing changed.

The Game is pretty much unplayable right now, which is kinda sad, since its my favorite.

ANY Help would be appreciated!