Alright this is getting really ridiculous.
I opened Fort Joy and I verified what treasuretable traders use, it's FTJ_Skillbook_RangerTrainer etc...
So this is my custom FTJ_Skillbook_RangerTrainer in the editor, same way as in Shared/DOS2 :
https://img4.hostingpics.net/pics/591486ScreenStats.png
And this is what I get in game :
https://img4.hostingpics.net/pics/171716ScreenIG.png
All my skills have been set to Starter tier, and all my Object Skillbooks have been set to Act 1. Still, I can't see them when talking to vendors in Fort Joy. Spent the whole evenig on it, I dont get what is wrong cause nothing looks wrong to me .. And yes I tried to Restock but it's the same.
EDIT: I think I figured what is wrong. The Export function in the Editor is completely bugged. It doesnt export the data correctly in the .txt and I had this same bug before with the SkillSet data.