"Patch 3 / Update 2.0 - WARNING
TL;DR - Patch 3 borked a lot of things. For some people it is causing all kinds of bugs and crashes in the vanilla game, which is compounded by having mods installed, and made even worse by updating mods and playing on an existing save. From what I have seen, this seems to affect mods that add items into the game the most. After extensive testing, re-testing, and more re-testing, I can confidently say that Update 2.0 of the mod works fine and is not the direct cause of any crashes you may experience.
Some people have reported that updating their graphics driver fixed the issues, while others have said that deactivating or uninstalling all mods, loading their save, saving with no mods, and then reinstalling the mods allowed them to load without crashes. Unfortunately, none of these are guarantees, and for some people the only option will be reverting to an old mod version or not using certain or any mods at all until Larian fixes some of the major problems introduced in Patch 3.
Hopefully Hotfix 7 has fixed crash issues for some people."
ça c'est pour les crash à cause du patch 3 ensuite :
Le mod manager est ici : https://github.com/LaughingLeader/BG3ModManager
un fix du mm , j'ai pas de soucis avec perso mais regarde ce lien si ça peut t'aider https://www.nexusmods.com/baldursgate3/mods/627
Pour le script extender je suis resté sur la version du guide sans soucis particulier
le mod fixer : https://www.nexusmods.com/baldursgate3/mods/141?tab=files