Dynamic Material Opactiy Parameter not working (but only for certain colors)

Hi everyone,

I have this very basic material setup with two parameters, color and opacity.



Now if I set these parameters in a dynamic material, the opacity works, but only when the color “is actually a color” (which means non white):

But when I set the color directly to white (rgb: 1,1,1) the opactiy parameter suddenly stops working and my material is completely non-transparent…

Any idea why that might be happening?