When performing an intra-forest move of a computer object you get an error in the move log. The target account name is correct, but still not joining the domain.
After looking at the netsetup.log file from the workstation the following error is found.
10/10/2017 20:32:53:687 NetpMapGetLdapExtendedError: Parsed [0x21c7] from server extended error string: 000021C7: AtrErr: DSID-03200BDF, #1:
0: 000021C7: DSID-03200BDF, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 90303 (servicePrincipalName)
10/10/2017 20:32:53:687 NetpModifyComputerObjectInDs: ldap_modify_s failed: 0x13 0x21c7
10/10/2017 20:32:53:687 NetpCreateComputerObjectInDs: NetpModifyComputerObjectInDs failed: 0x21c7
10/10/2017 20:32:53:687 NetpDisplayDupeSPNJoinError: Duplicate SPN found in the forest.