Can't connect to my mac's internal soundcard anymore since sonoma-update

dear all,

since i had (didn’t have much choice) to update to sonoma after some larger problems with one of my macs, i have been unable to use my mac’s internal soundcard with NU12 when wanting to work on the move. i checked all the access-options in the security-settings, all on green.
i tried to create an aggregate-device extra for this situation, no go either.

i saw in the cubase-forum that quite a few users have had similar problems - haven’ t been able to find a solution yet.
any clue?

thanks & best,