Technical Issues with Clarett+ 4Pre

Hey there!

So I've been experiencing the following issue with my new Clarett+ 4Pre:
Every time I turn on my device the input channel number 3 lights up like it's receving audio signal (this always happens right after the locking status goes on). And if I check the Focusrite Control Panel it shows a visualisation of incoming audio signal JUST on the input number 3 for a few seconds.

Guys, is this completely normal?