BUG when saving mesh to inp when creating Physical Group
I have a Python script to generate a mesh, if a save the mesh without creating the physical group all mesh is saved without any problem. However if I create this physical group only nodes and node set of physical group is created. I am using Gmsh 4.9.4 on Ubuntu 20.04.
Here is the code I am using (the two lines that cause the bug are uncommented): bug.py