ver5.8 volume rendering doesn't work

I am using Mac Catalina, 8G RAM. When using paraView ver 5.8, after restoring to default settings, I ran the example disk_out_ref.ex2 in the tutorial Ex 2.16, it became a black screen in the view window. Then I switched to ver 5.7, the problem the same. But when I switch back to ver 5.6, it works. Is it a bug?

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It does sound like a bug. Note that we have not been testing Catalina - we’ll need to at some point.

I just tried and it is working for me even if I’m getting this error

Warning: In /Users/kitware/dashboards/buildbot-slave/a64f5607/build/superbuild/paraview/src/VTK/Rendering/VolumeOpenGL2/vtkOpenGLProjectedTetrahedraMapper.cxx, line 290
vtkOpenGLProjectedTetrahedraMapper (0x7f7f15908c50): Disabling floating point framebuffer: Unsupported hardware. Volume rendering will continue, thoughartifacts may be present.