could take quite some time but 2 hrs is long…
depending on apps to download and an update of the firmware it could take more tan a hour if I remember correct.
if it is not downloading anymore (Blue loading animation) you could PtP and check if it worked.
Else re-power your old Homey and make another backup, Reset the new Pro to Factory (and maybe same Firmware) before you restore the new backup again.
Or send an Log (if possible) to Athom and request assistance from support.
