MagniFi Mini - sound disappeared after Google Home setup

I received my Magnifi Mini yesterday and it was working nicely until I set it up on Google Home today. Suddenly the sound got disappeared! Now there is no sound whatsoever in any mode - AUX/OPT/TV ARC/Bluetooth. All controls work fine, LEDs indicator showing that they are working but I can't here anything.

I have tried unplugging all power sources and cables and also let it sit idle for hours but didn't help. Also tried re-syncing the sub, resetting the WiFi but didn't help either.

Could someone please help? Is it a manufacturing defect or am I missing out on some setting?

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