the new firmware does a better job of generating keys, and now waits until after the radio region is set by a user. wiping and reflashing recreates the keys it got when a vender bulk flashed devices.
Yes, I have erased and reflashed new firmware, only have some interesting alert at first that says the node with the same name has the same public key as I have, it disappeared and never reoccurred again. Cheers, thank you mate.