Amnesia - Level Editor Bug (?)

[TheGilgameshZocker]

Hi, I want to make a Custom Story for Amnesia, but when I start the level editor, and then click on the "Enlarge current Viewport" button, or if I press Space, this will happen: (as Attachment)
Do you know what I can do against that?

[Your Computer]

Do you mean to say, nothing happens?

[Stepper321]

Do you mean to say, nothing happens?

Something happens, the bars on the side go away. It should work still, try to map something and then try it, or try to reinstall it and run it as administartor