Softbody collisions with StaticBody3D

Godot Version

Godot 4.2.1 / Mac Silicon / 14.4

Question

How to achieve correct collision between softbody and staticbody ?
I can’t find the right settings to avoid the softbody going thru a staticbody with collision shape. The documentation is a bit light on this subject.
Any recommendation ?
godot-softclip-collision