[Gmsh] Problem with Gmsh and FreeFem++

[Pietro Mascheroni]

Dear Gmsh users,
I have a problem with saving a file in .msh format.
I use Gmsh together with FreeFem++: when using gmshload I have this message:

assertion fail:  (area > 0)

I noticed that when the mesh that I draw in Gmsh is colored in light blue
this does not happen, and freefem reads well my mesh.

Thank you in advance for any help,

Best regards,
Pietro
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