Cubasis not playing nice with Audiobus 2 with audio track se

i have an issue…

i open Ab2 and cubasis from Ab2 in output, i then open Alchemy in Ab2 and get an audio track automatically showing in Cubasis.

i then setup a midi track in Cubasis and select Alchemy…all is fine…

i then introduce isem in the same way as alchemy above but dont get a new audio track created in Cubasis…

i manually select the audio track in Cubasis for isem…but it shows 2 options, Alchemy with the alchemy icon or isem with the alchemy icon…

neither give me audio for isem.

i have tried the above with iprophet and nave and get the same result…

ims20 works ok…but alchemy now has no sound…odd…

can you help?