You may see the following error while attempting to rearrange an account.
Failed: New homedir already exists, all actions canceled (was this account already moved?)
This is caused by a directory with the same name as the account existing in the target home directory. For example, if you are trying to move cPanel account "ACCOUNT" to /home and /home/ACCOUNT already exists.
The directory will need to be moved out of the way. The command below would resolve this if you were trying to move cPanel account "ACCOUNT" to /home.
mv /home/ACCOUNT /home/ACCOUNT.backup