Just saw this and wondering what are you using visu wise then ? I'm assuming class change plugin as it allows classes to unlock and multi class and would through off this plugin ?
https://www.yanfly.moe/wiki/Class_Change_System_VisuStella_MZ
Hey bro, how's it going? This system doesn't use standard class-change functions; instead, it creates a stat distribution curve and applies it whenever the user levels up, with a few extra features. The issue here is that the progression curve is tied to the player; if the class-change system were to alter the stat distribution, it would almost certainly cause conflicts. Personally, I follow a golden rule in these cases: if two plugins simultaneously modify the same classes (in the programming sense), you can expect conflicts. So, in theory, they’re going to have some trouble working together.