Midifighter + Reloop digital jockey = unresponsiveness

[1voud]

Hi

I have downloaded the new traktor pro 2 mapping (found here) for my reloop digital jockey 2.
The mapping works fine on itself but when I use the digital jockey together with my midifighter (link here) the digital jockey becomes unresponsive after a while of usage. Meaning it does not react when I use the buttons or jogwheels,... . The midifighter still works like a charm.
The only thing that resolves the issue, is disconnecting the digital jockey and restart traktor pro 2.

When I use the traktor pro 3.4 mapping (found here), everything works just fine.

Did/Does someone have the same issue and solved it?

Configuration:
Mac OS X 10.6.8
Traktor Pro 2.1.2

[photojojo]

Do you have the in/out ports set correctly for the digital jockey?

[1voud]

Yup my output and input settings are fine, because all works just fine for lets say 1-2-3 hours (it varies) of dj-ing and then all of a sudden traktor does not respond when I use the buttons on my digital jockey. The midifighter still works fine.