Here's a weird one! Reason is great to check aftertouch functionality, because NN-XT let's you see aftertouch on the 3rd wheel at the top!
My komplete keyboard S61 MK2 was showing no aftertouch, so I first:
Ran reason as a rack plug in in Komplete Kontrol and voila! Aftertouch
then I deleted the komplete keyboard as a control surface in Reason Stand alone, and let it run as just a keyboard and voila! Aftertouch again!
There isn't a mapping for the S61 MK2, and I didn't find one that works.
