Reloop Mixtour Pro headphone cue distortion when using NI Audio 6

Hi, I have the same problem, when selecting the macbook built-in speakers as main output, I get a distortion in the headphones when pre-cueing. Choosing as main output the Mixtour Pro solves the problem, however I obviously can’t hear the main since I don’t currently have speakers connected to the Mixtour.
My setup is:

Macbook Air 13" 2020
MacOS Sequoia 15.2
Djay 5.2.6
Reloop Mixtour Pro

I have already tried updating the firmware for the Mixtour and it didn’t solve the problem.

Thank you in advance!