Textures flickering in Soul Cairn

[yuser]

First time play Dawnguard, and now i'm in Soul Cairn. And there is a problem with flickering textures of some buildings. It looks like quick switches between normal textures and some very low-res ones. This flickering appears at all distances (except may be long distances - i'm using uGridsToLoad=7 and with those specific lighting of Soul Cairn it's hard to notice such details for LOD objects). I have no idea, what cause this. I'm using only textures form STEP guide.

 

Sorry for my English.

[DoubleYou]

https://wiki.step-project.com/Guide:Z-Fighting

[yuser]

DoubleYou, thank you.