No QR Code

[JPS]

If I try to enable Scorbit I only get the black box where the QR code should be, but no QR code. Not as a pop-under either. 

I've tried GOTG, Munsters and Blood Machine. Only on Blood Machines I briefly see a very large QR code in the corner of my playfield, wich quickly disappears (and again, not under the playfield/table). The other ones I see nothing at all except the background where it should be (might pop up and disappear, but could be too fast for me to detect).....

 

Any suggestions?

 

Firewall is off, an stoken.dat is generated, other than than I dunno what I'm doing regarding Scorbit, it's new for me.