Sample Rate Problems

Hi List,
I am getting the message posted below when I try to boot SC at 96k. 44100 is working fine. I have checked the audio / midi settings on mac utilities and set them to 96 k - doesn’t help. Does anyone have any similar experience or a solution. I am on Mojave on a MBP 15".

Requested sample rate 96000.000000 was not available - attempting to use sample rate of 88200.000000
set kAudioDevicePropertyNominalSampleRate error tad!

Many thanks.