Volumetric representation breaks when used together with semitransparent object
As per the title, I experienced that the volumetric representation breaks when used in conjunction with a semitransparent object. Please refer to the following screenshot. In this session, I opened a cube with a point data field defined on it, I created a threshold and chose a volumetric representation for it. Now, I want to show this representation, which you can see in the leftmost panel, superimposed with a semi-transparent representation of the original cube, which you can see in the middle panel. Both work fine individually. The rightmost panel shows what happens if I try to show both [the leftmost and the middle panels] together.
I am using Ubuntu 20.04.1 + KDE Neon and the bug affects at least Paraview 5.9 and 5.8.1.