Pardon, I guess I did not translate your answer correct the first time…
You mean , the ASIO DirectX Full Duplex Driver does not work also, right ?
That is interesting.
I start to guess it is either simply a bug of Wavelab since Version ??? But it is very very strange that products out of the same forge does not work together 
For what reason ever the Steinberg Generic Drivers are disabled in Wavelab.
Maybe they work in the full Wavelab Version ? If not and if noone else can confirm they work I guess I will make a ticket at Customer Service after some days watching the replies in this thread .