Cubase 14 not routing correctly to MOTU 624

Hey everyone,

I recently upgraded from Cubase 11 to Cubase 14 (on macOS intel sequoia 15.3.2) and ran into a strange issue with my MOTU 624 audio interface. In Cubase 11 everything worked fine, but in 14, audio is only sent to outputs 9/10 — and even weirder, those are marked as inactive in the Audio Connections panel, while all the active outputs receive no signal at all.

I’ve checked everything I could think of:
• MOTU works fine with Safari and Finder.
• I reset the Cubase preferences folder.
• I removed and recreated all buses.
• I tried switching between ASIO drivers.
• MOTU routing via the web control panel shows no signal from Cubase (except 9/10).

It’s like Cubase 14 just doesn’t talk to the interface properly anymore. Is anyone else running into this with MOTU interfaces? Any workaround or trick I’m missing?

Appreciate any help!

Thanks.

The biggest difference could be that in one Cubase you use the Control Room and in the other you are not.