Qt Quick3D, Qt Quick3D Effects and Qt Quick3D Materials all have category "Qt Quick 3D Custom Shader Utils". If this category is hidden in one module and then other modules are removed/added later, they hide the Qt Quick 3D Custom Shader Utils category in those modules as well. 

Steps to reproduce:

• Add QtQuick3D,Qt Quick3D Effects and Qt Quick3D Materials modules to a project
• Hide "Qt Quick 3D Custom Shader Utils" category in QtQuick3D module
• -> does not hide same category in QtQuick3D Effects or Materials, as expected
• Remove Effects module
• -> Shader Utils category is hidden in Materials module now, would expect it to stay visible
• Add Effects module
• -> Shader Utils category is hidden in Effects module, would expect to be visible