My SA1 Knuckles model isnt working

[SK120]

Whenever i use the pepper-minted models (I dont know how to say it in the third person...) the game crashes when a load knuckles' model to be specific the dreamcast model and in addition it struggles with amy rose too can someone give me a tutorial on how to add these onto characters

 

[A_Brazilian_Guy]

Whenever i use the pepper-minted models (I dont know how to say it in the third person...) the game crashes when a load knuckles' model to be specific the dreamcast model and in addition it struggles with amy rose too can someone give me a tutorial on how to add these onto characters

I think the model is outdated, this happened with me too and i cant fix it