Are you sure everything was in a recent back-up?
Have you turned off the old homey before powering on the new one?
Have you gave it some time to restore and download everything completely?
You could try again. Give it time and stick to the guidelines mentioned in the migrate item in the knowledge base on the website.
I had the same issue and ‘lost’ all my HUE devices putting a backup from the old Homey on my new 2023 Homey. Seems that your old devices are still running on the old 2016 Zigbee network en all new devices are installed on the new 2023 Homey. Although I can’t see any ( old ) Zigbee device in my developer page, they all work fine with my new Homey.
As you wrote here, you’re using Hue devices with the bridge. Because these Hue Zigbee devices uses their own Zigbee network via the Hue bridge, this problem has nothing to do with the problem of the OP. What comes into my mind is, that the HP23 has got a new IP address, maybe this is/was the problem. But it’s OT.
Just a Quick question: setup my new 2023 pro to ethernet. Asked it to resterende the latent back iep. It’s now allready 2 Hours on a blue ring turnigy (Homey is Busy) How long dis it take you?