Changing the color of a layer material doesn’t work in certain cases:
Steps to reproduce:
Open material editor by clicking layer material in layers panel
Click Color (e.g. under Plaster Material), the native Color picker dialog opens on a given tab based on how the color was originally selected (in this case, HSB sliders)
Moving the sliders doesn’t change the material color
If, instead, you go to the “Pencils” tab, and select a different color, then go back to HSB sliders and adjust, the change takes effect