[Gmsh] Problem creating 3D mesh for geometry with multiple volumes.

[Mahesh Prasad]

Hi gmsh community,

I am trying to mesh my 3D geometry that contains multiple volumes. Each 
volume is defined individually in the (.geo) file and the volumes match 
along the intersecting surfaces.
Now when I try to mesh this, only the volumes that lie completely inside 
the geometry gets meshed. I have attached my (.geo) file in which 54 
volumes are defined, and only 19 volumes undergo 3D meshing. Could some 
point to what mistake I am making ?

NOTE: After importing this geometry into gmsh, I use "Coherence" to 
remove duplicate points lines and surfaces.

Thank you all in advance.

Best Regards
Mahesh
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