Thanks a lot. I got it working with LSTools. Now I can interact and move the object without making it disappear. I still need to fix the rest of the objects but that's no big deal.

Before exporting a model in .obj format with the toolkit the model must be moved to [0,0,0] (i.e. world origin)

Any ideas where the bullet files should be stored ?

Right now I have them in /Public/<my_mod>/Assets/

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