AI 8 Problem with Audio Track Input

Hello. I have a problem with the methods of internal VST recording using either group tracks or output buses.
The way it is supposed to go is that the VST track outputs to the group or bus and then from there the group or bus outputs to the audio track. The problem is, when I try to set the input of the audio track as the group or bus, it is not listed, and so I cannot make the chain.
I can’t figure out why and I would appreciate some help.


This feature is Cubase Pro only.

Thank you for telling me.