I am switching hosts, and I restored several accounts ranging in size from 30 MB to several GB. I thought all had gone well but just discovered that for all of my add on domains, it failed to create the DNS entries, and it also failed to create the email accounts - at least, they are not showing up in CPanel, though all of the data is in the appropriate /home/user/mail directory. The DNS zones appear to have been created, but are blank.

Is there any way to fix this?

The old accounts used the rvblue theme while the new ones use x - that shouldn't make a difference, should it?