I've a problem with LASS 2's ARC... The keyswitches don't work with instrument routed to midi port B-D in Kontakt.
I routed this example in this way:
-Vl FC Leg: port A chan 1
-Vl FC Stac: port A chan 2
-Vl A Leg: port B chan 1
-Vl A Stac: port B chan 2

KS 1: Vl FC routed to port A chan 14
KS 2: Vl A routed to port A chan 15
KS 3: Vl FC+A routed to port A chan 16

Articulations on Keyswitch 1 work as they should, but the others don't. As long as I don't touch anything, if I play on midi chan 16 I can listen only the Vl FC, but when I press any of the KS the sound drops completely and there's nothing I can do aside from closing the program to make it function again.
Strange thing is that ARC's interfaces recognize the change of keyswitch (the little blue light near "Active" lights on and off if I change ks), and the instrument panel in Kontakt tells me that a midi event is occuring if I play a note on my keyboard, but the instrument doesn't respond. Any idea?

This happens both in DAW (Reaper) and in standalone mode.