Mesh doesn't work with command "Mesh"

As you can see in the image, I applied the “mesh” command for the whole object. But it was partially applied only in the right centre and I could not apply mesh to other materials.
How can I apply “mesh” to others either? Its command doesn’t work.

This is my 3dm file.
mesh.3dm (2.0 MB)

The three surfaces under the pyramids are duplicates, I deleted 2 of them.
There are 32 pyramids already meshed, 68 that are still polysurfaces. They are grouped, Ungroup them.
I used SelPolysurface to select the polysurfaces and ran the Mesh command.
I used Unweld 0 to fix the weird normals of the already existing meshes.
In the file below the original surfaces and polysurfaces are hidden.

allmesh.3dm (5.1 MB)

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