Hey,
i started to play the game, and i found this problem. I tried to apply the fix, but it says it can't found the xenonauts process. I downloaded and unfolded the fix in the root game. I dont know if i miss something i should do, but i tried to execute it when the game is already started (actualy, in the very same bug moment) and i tried to open it before launch the game and tried to use it when the bug appears.
The game is the steam standar one, no mods. I uploaded my save game with the name "bug.sav"