Hey there @TheWeeky! This one’s a shot in the dark, but this has fixed a bunch of material issues with translucency and transparency, but I’m unfamiliar with the volumetric material portion of it. Try playing with the translucency sort policy a bit!
Is your skydome actually big enough to be behind your clouds? Because “Apply Cloud Fogging” should be all that is necessary as far as I know
Same material, no settings changed other than the scale of my star mesh:
I think its the size too make the skydome 50,000 units larger and your volumetrics will appear