change of hardware
I suggest to make transfer of hardware little less a nightmare . You can do it via opening ticket in support like if it was a bug. Which means that in case of hardware failure you are in trouble.
Import didn't work I had to copy the old building directory into new server (think of also saving that preciously because if you think you are protected with back up you are not, when I see how painful it was to transfer the license I cannot imagine how easy it would be to get hep on that topic )
After you have to update all application phone table and other medium of the family, with a system that does not allow you to check password entered (which is so nice when you used secure randomly generated password and not "smarthome"). Redo the alexa setting and I dot not know what else if you have connected more.

Hey,
Just my 2 cents.
I have had to change hardware too few times, I dont know what was wrong with your backups but you should Restore backups not import if its a new install. Import is when you want a single node from the backup.
And usually it takes an hour for Comfortclick to transfer the new id in my experience. They need to know the new Machine ID and old site/bOS server ID. You dont need to register the new install before they have transfered the bOS ID/license just send them the new machine ID and it will be registered under the old site ID with the new machine ID.