Now I have received the replacement and I’m a little bummed as this one has the exact same issue 
Maybe it’s a general problem but wasn’t recognized yet?
Can some of you please test this on a few other devices?
If it’s “normal” (which I think it shouldn’t) I guess I have to live with that but it’s quite annoying.
Please go to a long menu, for example the load patch from the synths and turn the jog quite slow, click for click, there seems to be one position which doesn’t recognize the rotation (if you rotate further and back again, it’s the same position in both directions)
As there seems to be some acceleration implemented if you rotate the jog quickly, I suspect this could have to do with the problem. (maybe the rotary-knob is based on hall-effect sensors, then this might be solved in software)
At least the replaced one doesn’t seem to jump over 2 values at a time but to be honest, this is not what I would expect from a precise jog-wheel.
Any help on this appreciated