Migrate from Homey Pro early 16 to early23 not working

It’s a known issue:

So please contact Athom!

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.