"character_add_model_replacement()" dont work for certain objects

For the custom character i'm making I'm trying to replace certain ennemy and object models with custom ones. I'm using the command character_add_model_replacement() from the api of character select. I replaced the bobomb without any trouble, but the pink bobomb isn't working. For some reason, only the pink bobomb in snow snow moutain work. I have a similar issue with lakitu : i replaced the lakitu of the introduction without any trouble, but the one that talks to Mario on the bridges still has the basic model. I dont have errors on the consol, i dont understand why it doesn't work.

It's really weird that some models work but others don't. If you have any idea why, that would be a big help !!!

my code :

local E_LAKITU = smlua_model_util_get_id("lakitu2_geo")
local E_MONOBOMB = smlua_model_util_get_id("bobomb_geo")
local E_USABOMB = smlua_model_util_get_id("bobombBuddy_geo")

[...]

local function on_character_select_load()

[...]

charSelect.character_add_model_replacement(CT_CHIAKI, id_bhvBeginningLakitu, E_LAKITU) work
charSelect.character_add_model_replacement(CT_CHIAKI, id_bhvCameraLakitu, E_LAKITU) doesn't work
charSelect.character_add_model_replacement(CT_CHIAKI, id_bhvBobomb, E_MONOBOMB) work
charSelect.character_add_model_replacement(CT_CHIAKI, id_bhvBobombBuddy, E_USABOMB) doesn't work
charSelect.character_add_model_replacement(CT_CHIAKI, id_bhvBobombBuddyOpensCannon, E_USABOMB) work

[...]
end

hook_event(HOOK_ON_MODS_LOADED, on_character_select_load)


in game :

Bobomb works, Pink bobomb doesn't



only this pink bobomb works



this lakitu is okay



this one isn't