Render() causes a non responsive Visualization Toolkit - Win32OpenGL on Windows
I posted this question here first but it seems to be a bug. It seems that the VTK shipped within ParaView 64bit is 32bit! which causes the rending windows to be non responding:
The solution should be either compile a 64bit VTK inside with ParaView or also offer a 32bit ParaView built. I checked the compile instructions there are no indications of how to compile either of paraview and/or vtk in 64bit or 32bit versions.