Welcome to the forum - I hope you like being ignored!
The Tango and Nuendo-5 do work very well together, but not Tango and Nuendo-6 and we do not seem to be getting anywhere.
Without any current comments from Steinberg we don’t know if they are helping SmartAV with this or whether they are deliberately not helping them in the hope that we will all go and buy Nuage (not going to happen!).
I have just asked Niko at SmartAV for an update on what is going on (if anything) so will post here when I get a reply.