By default Veeam performs a non-authoritative restore of the DC.
This is OK when you restore one DC to production enviroment.
I mostly restore one production DC to test enviroment. I know there are instructions, how to do manually authoritative restore.
Veeam have build-in functionality to perform authoritative restore in SureBackup where I cab choose between authoritative and non-authoritative restore.
I suggest to add possibility to perform authoritative restore to Full and Instant Recovery - at least when "Restore to a new location or with different settings" is selected.
And pls add "Open Logs path" to File or Help menu - as Veeam Off365 have