Phis is not working properly…

[Antonio_Fajardo_Nava]

Hi,
I have been following the 3D Godot course.
I am following the section to add a Collision Shape 3D but I tried with a Model created in Blender. I manage to export the Object and add it as the rocket but the physics are not working properly. I tried to add the cylinder but is not working either. Look at the problem in the attached video (youtube link)
I added the collision 3D shape in different ways and try to put back the original cylinder.
The collision shape must be a child of the object/mesh…
Apologies for my lack of technical terms or knowledge

Can you guys help me?
Thanks in advance.
https://youtu.be/bZO5jf_AyOk
Ps: Apologize for my spelling mistakes. English is not my first language.

[Marc_Carlyon]

I believe we may have answered this with already in Udemy or this may be a duplicate question?
The solution i believe was something to do with the way the origins are in blender.

[Antonio_Fajardo_Nava]

Yes. You did. Thank you very much!!!