I have V Collection 4 and am trying to run Spark 2 using Maschine Studio. Several of the drumkit pads do not trigger (scale set to Chromatic, staring on C-3, which assigns the bass kick to the lower left pad, and then up chromatically). The mouse does trigger the pads in the software.
One would think there would be a way to use Maschine Studio to select patterns, but no luck, although one can select types and modes in the browser (but lots of crashes).
So NKS doesn't seem to be thoroughly implemented; for sure with Maschine Studio, and with crashes in Komplete Kontrol.