The bug is known by now to the devs (clarification: i am no dev), but it wasn't mentioned yet in this forum. I suffer from it too. I was told some people managed to get rid of it by quiting the game and reloading it, but for me that doesn't work.
Being out of clue i tried various stuff like loading the savegame on the linux-version, but it's bugged there too.
I will give your savegame a try on my system. But I don't see why it should work for me. Hope dies last.
As far as i know the devs haven't solved the bug yet, but they are working on it.