Your comment encouraged me to try Paraview 5.13.2 via WSL gui. On Paraview 5.13.2 via WSL my example runs without any problems. So it seems to be some kind of problem with Paraview for Windows.
Your comment encouraged me to try Paraview 5.13.2 via WSL gui. On Paraview 5.13.2 via WSL my example runs without any problems. So it seems to be some kind of problem with Paraview for Windows.