MF KW25 DAC only decodes redbook?

A few days ago I traded my old amp for a mint Musical Fidelity KW DM25 DAC but I'm having some problems with it.

At 44.1KHz everything goes fine but when I try to play some 24/96 or 24/192 tracks from my Squeezebox Touch, the DAC just loses the lock like there is no input present...
I tried the Touch with standard software and with EDO and Toolbox 3.0 - no difference at all for the kW DAC.

Is there any workaround for this?
I can trade it back for a PS Audio NWD if I like but I have no idea how these two would compare to each other.