Cubase 10 Outputs No Audio

Open a project after a month, played back : no audio. Meters are showing signals, but nothing goes to audio interface. Other media players working fine with the same interface.
Any idea?

Which version?

Cubase 10.0.20

It seems it get stuck at activation of project stage as I get the yellow flash button on upper left screen corner, which of course doesn’t work.


Nevermind… the output channels were reset to ‘not coonected’ in Audio Connection Menu for some reason.