Is "Add Collision Convex Mesh" node broken or am I missing something?

Why does no collision appear to my Procedural Mesh Component when I use the node “Add Collision Convex Mesh” like this?

Is it broken or am I missing some step?
If I check the box “Create Collision” in the other node it works. But I wouldn’t want to use it because I’d like to keep my collision separate from my mesh. (Mainly because my mesh is 2D but collision has to be 3D).

same problem here, did you managet to find solution?

you need set bUseComplexAsSimpleCollision false