Hello,
I have tried to replace the Gria base job Hunter by Soldier, so I have changed the Command field in the Job Editor to 01|Arts Of War and in the Ability Editor I changed the AP slots that the Gria Hunter abilities had to the soldier abilities.
But as a result in the game the Gria Soldier cannot learn the Soldier abilities and it says the job is mastered (with 0 ability mastered out of 0 i guess).
Maybe I am missing a step ?
Are you using a fresh save to check, because of the way units get "created" when you recruit them their old data could be in conflict with the new changes maybe.
Try to start a fresh save and edit one of the starting units (NOT Luso, Cid or the Numou Black Mage and Viera White mage from the tutorial) to be a Gria and see if it works
Thanks for the tip i will try :)