I just picked up a SmartShunt to act as a DC monitor since I already have a BMV712 for the main monitor. However upon installing it on my test bench, I found that there is a buzzing noise coming from the PCB. I did a quick search and found a few other users that reported this. Is this a common issue with these smartshunts? I'm mild OCD so I know when it's really quiet and I can hear it it'll drive me nuts. If I can get a warranty swap it might be worth it if it's not a common issue.