I'll stick to your advise.. Although I've been using the HQ viewport because it enables me to preview the layered texture.

Any thoughts for the software renderer?

I was trying to understand it's functionality.. It seems that it renders the fur separately from the targeted object and then composites once the rest of the scene is rendered out.

- The rendering process starts with the fur being rendered (shown in the script editor)
- then the scene (terrain and fluid) is rendered (in the render view it appears without fur)
- and finally the fur is applied to the scene and the fluid suddenly becomes transparent (the parts of it that directly overlay the fur).

I wonder if there is a quickfix for this or there is a walkaround or at least an explanation.... or maybe it's some kind of technical problem which I should look away from