Traktor X1 midi mode not recognized after closing Traktor

Traktor X1 midi mode not recognized after closing Traktor

I have this problem where after i close traktor, macbook, or usb that the X1 stops working in midi mode but works fine in normal mode.. Anyone know how to fix this? Mac OS X

Fill ticket to NI support!

I have this issue too, I solve it closing traktor, opening audio & midi, remove usb cable of x1 and deleting x1 from midi, so connect the usb and open traktor.
may be this help