Hi Patrick,
Sorry for my delayed response as well.
I was in contact with support regarding this issue some time ago.
Just FYI, it is indeed a browser issue.
This doesn't work for me when using IE10 or IE11. Anything below works fine. As wel as firefox.
So using anything but IE10 or IE11 worked perfectly for me.
kr and tnx for your response,
Dawi_X