We've identified the issue. The Native Access.xml file downloaded by NA is damaged/incomplete. Please try these steps:
Please delete the Native Access.xml in the following location and restart your computer and open Native Access:
Windows: C:\Program Files\Common Files\Native Instruments\Service Center
Mac: Macintosh HD > Library > Application Support > Native Instruments > Service Center
Restart your computer.
Repeat until the missing products reappear/the products in demo recognise their activation again
If that doesn't help you can get in touch with our support:https://bit.ly/NI_support_NA