while driving around on tanoa i noticed that with cup terrains loaded, the dust effects disappear.
i tried around a little and found out that the problem comes with cup terrains core. my guess is that some surface configs overwrite vanilla surface configs.
i made screenshots to show you what i exactlly mean with dust effects:
first one is with no mods:
second one is with only cup terrains core:
this problem not only affects tanoa, but also altis and stratis and i also noticed that on the cup terrains the dust effects are either very decent or not existant at all.