When I am playing the game I can not save the game - when I try to do it nothing happens however autosave is working. My save menu is not functioning - see attached printscreen.

Please help me in solving this.

This seems to be a bug introduced with the latest patch. I have the same problem, though i can overwrite my existing savegames from the previous version but cannot create a new one.

As a workaround try using quicksave by hitting F5. Unfortunately there is only one quicksave slot.

I've already reported this bug to the devs.

Same problem here. Since I bought this game after the latest patch, "Save game" is completely broken.

Same problem here, only quicksave is working.