Traktor Kontrol S2 MK2 w/Traktor Pro4 - disconnection issue

Ben_101

I use S2MK2 kontroller with PRO 4 and occasionally the Controller stops working, music is still playing and I can use the PC, but the S2MK2 is non-functional. It appears to have light, just that no knobs or anything seems to work. It has light. Kontroller Power off shifts sound to Mac speakers and Power on makes everything stop before sound returns to output on the controller and all works fine for a while. Controller is powered with USB-c to controller. Can it be low voltage error?