ur28m hear all the time input 1.. faulty?

Just checking if my unit is faulty …

When I plug mic into input 1, I hear that microphone all the time on my monitors (analog out 1 and 2) no matter how low input 1 gain is… tried input 2, same thing. Only way to prevent input 1 going to monitor is to mute it in dsp mix. When I turn up gain on unit, microphone is increasing in volume, but when turn down gain, it does not dissapear completely.

Why is this happening, and is this normal behavior of unit? Is my unit faulty?

I am on mac, working with logic pro x.

Best regards

Anybody ? Come on ur28m users