RNBO not available even after fresh install

Oni Shogun's icon

for some reason, RNBO is not available on my system since upgrading to Max 9.

The objects cannot be found, no autocompletion suggestions, the package manager offers Launch but nothing happens and Show in Filebrowser yields 'No Results'.

Would be very cool to use the RNBO Trialversion as long as I'm able ;)