Weird artefacts

[Arkiras]

@AidenStrike

Hello, i have some weird artefacts, i had not it on UE4, but recently i updated my project to UE5.
It appears at some distance. It also disappears for a while then i restart the engine.
It is not depended on post effects.

Are you using lightmass? This almost looks like your lightmap mips are somehow getting corrupted.