Here’s what I got from Wyze:
The chip has a hardcoded MAC, and then we mask that MAC via firmware, upon startup. Sometimes it doesn’t take though…
In his case, the app is most likely showing the MAC that the firmware reports, however the mask didn’t take, so the hardware is using the hardcoded MAC.
Pulling the plug for 20 seconds should hopefully resolve it. I don’t think a soft-reboot will though.
There were tweaks made to the firmware months ago (maybe a year ago?) that were suppose to resolve this.
I hope that helps. If the issue continues, you should file a support ticket on this so they know the issue isn’t fully resolved.