Greetings, Saviors.
Many users were unable to advance their job classes because of a bug in the UI projection. This was due to a defect in the output of our UI coding. We have fixed this issue, so you should be able to proceed with your advancement now.
The change will be applied once you move zones or reconnect to the game.
If you face the same issue again, please report it on our forums or through support tickets. Thank you.
Best regards,
IMC Staff