That is correct. The account import process only happens once. The first time you log into a current gen console, your account data is imported and that's it. Once you have completed the process, your account progress is permanently separated from that point forward.
https://www.bungie.net/en/Help/Troubleshoot?oid=44804
English
-
That's what i figured, shame though. My warlock is level 40. Thank you for taking the time to answer a question about such an outdated situation.