Got my brand spanking new C8Pro to replace my C8, but restore of a cloud backup failed with an unknown error.
Zigbee radio remained: "INITIALISING".
I next factory reset the hub, got the "welcome to your Hubitat" screen, withour registering went to the zigbee page, and agan: INITIALISING
Tried zigbee disabled > remove power for 60 seconds > power it again > INITIALISING
No matter what I do it remains in INITIALISING status.
Do I have the luck in reciving a DOA?
Created an RMA ticket.
Ordered three hubs, and this is the only one that is not wanting to do anything with it's zigbee radio.
I got a C8 with a bad Zigbee Radio. It would work for days or a week, but then it would lock up and just sit at INITIALIZING until I rebooted. The warranty hub fixed the issue, so I would say stuck on INITIALIZING is a sign of a bad radio.
What is the avarage responce time to an RMA request?
I did not recieve an acknowledgement of the request, or any other info.
As soon as @bobbyD see it, he will process it.
Two days sinds filling out the RMA form, but still no response 
@bobbyD, is my RMA form recieved by Hubitat?
Looks like it was delayed because the MAC address submitted may be incorrect. Can you send me the MAC address of the hub with problems in a private message?
Done.
Should you need the recept, just give me a PM.
@bobbyD, any updates for my issue?
I'm having an new expensive brick on my desk right now 
We’re currently coordinating with @Ultrasmart.pl to ship your replacement unit from Poland. As mentioned in our private message, we recommend avoiding another migration attempt. The issue occurred during the migration—something in your existing setup caused the radio to go offline and remain unresponsive. Attempting to migrate again on the replacement unit may likely lead to the same outcome.
Thank you for the update. 
As mentioned in our private message, I'm willing to send you my current bricked unit, but got no responce.
Seeing it is unclear to Hubitat inc what in the C8 to C8Pro migration caused this blicking, I suspect you would need this unit to investigate the cause before you see more of these issue's with other new C8Pro units.
This offer still stands of course.
That unit is not really useful, as the radio cannot be resuscitated.
We are aware that migration may not be successful in all cases, as mentioned in our documentation:
Issue solved by replacement hub.
Thank you @bobbyD for your support, @gopher.ny for your analysis and @Ultrasmart.pl for sending the new hub.
You're welcome, anytime.
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