UR44 - cubase Meter input show anomal activity

Ho community! I Hope you can help me.
I have a UR44, (with last driver and firmare avaible).
The frequency Is set at 44khz
The buffersize is set at 256
there are no physically connected inputs on the souncard, but the cubase in all input meter shows little crazy low signals…
It’s normal?
I have connect soundcard with USB cable included in the package.

Thank you very much!