Procedural Mesh Collision

I’m using procedural mesh in order to create quadrilateral 2D “regions”, where players can place actors

The problem is, when components obiously overlap (as in screenshot), “Get overlapping components” returns nothing

Both procedural mesh components are set to “Overlap All” Custom preset

When I check for overlap between any 3D mesh like Cube or Cone and Procedural Mesh, everything seems to work as expected

Might this be the problem because of meshes “flatness”? All 4 points on which procedural meshes are constructed, are always situated in one plane