strange looking mesh - like one mesh overlay on top of another

Hi, I’m using snappyhexMesh to create a 2D (one layer) mesh with an airfoil inside. The mesh looks strange, like one mesh overlay on top of another.
It looks ok when loaded, but once I zoom in and out, the strange thing happens. I have attached the mesh. Is it a bug?
paraview mesh bug 1
paraview mesh bug 2


Hi, I found the reason. It’s because I have another polyMesh dir inside the polyMesh dir. Once I deleted it, the problem is gone. So somehow paraview was reading maybe both meshes.