This is an odd one, which I’ve had on Cubase for some time (previous versions too).
I have a MacPro (cylinder style) with a Sonnet Thunderbolt to PCIe chassis, containing 3x RME Hammerfall card which are connected to Multifaces (2 mk2 and 1 mk1).
That works beautifully, most of the time. Very low latency audio.
Ableton Live also works well with this setup and doesn’t suffer from the issue I’m seeing with Cubase.
If I have one of the Multifaces’ MIDI ports active in my project (template or actual project), then after a power cycle, Cubase can’t find the Multiface’s MIDI port again and forces me to re-assign it. That would imply that there’s some problem in Cubase’s detection of the MIDI device’s ID somewhere…?
My case might be unusual, but I wonder if anyone else is seeing it - or if Steinberg are aware?