Well, as a reward (I know it's not the best reward ever, but let's move on), I gave some Job Levels to a player using #joblvlup PlayerName Number.
The player, an Acolyte, successfully received the Job Levels, but he could place his points wherever he wanted to... Not only in skills of the Acolyte class.
Why is that ? That's a pretty weird bug, isn't it ? And it does it whenever I #joblvlup a player. Any ideas on where the problem comes from and how to correct it ?