KONTAKT 6 player misbehaves in Cubase 11, works well stand alone.

Hello, please help with this.

I have a mac mini M1 with 16 GB ram, 1TB ssd.

Cubase 11 latest , Kotakt player 6.

Kontakt 6 player works fine stand alone. Inside Cubase 11, one single note can trigger the audio performance to top, making sounds like clipping .

( but no audio actually clips in any signal path as it 50% gain ) .

NO other CPU functions running. Plenty ram, and SSD.

This behaviour is exactly observed 10-11 years ago under Windows , I got a mac and never saw cpu skpikes ever again! ( exept with DIVA :-) )

IS this an Apple silicon VS NI code thing?

Thank you in advance!