Help URP Fluid renderring in FluidMixing scene

[kebab_traume]

Hi! Have a question. I have tried to apply urp fluid shader to simple fluid example and it worked. Made the same with mixing fluids scene from default examples - see nothing. Particles shader work without problems. So here're two questions - what I did wrong and how to mix two transparent white fluids to have opaque white as the result of mixing? Thank you!