Hi!
So i had this problem for a while, when i assign a knob on my komplete kontrol keyboard to something in serum it works, i get to control the parameter. But when i enable write automation and tries to record it nothing happens. If i move the knob in Serum with my mouse it records the automation fine. Wierd. First i thought it was the Windows 10 issue with the keyboard but Native Instruments and Microsoft have resolved that now. Anybody had a similar problem?
I wish you all a nice day producing music 
/Jazzgust
i am having this same issue in some NKS instruments (i.e.: Sonic Couture X Bow GUITAR, etc).
anybody???