Weird Landscape shadows (also in Unlit Mode) with and without RVT

[Micsa_Dan]

Hi, I have not seen a similar topic opened elsewhere, if I am wrong please help me with links.

When I closed my computer everything was fine, after opening it today I observed I have weird shadows in some parts of my landscape. I thought is from the light, but I have them in Unlit too. I thought is from RVT, but I disabled RVT and only some of them disappear. Maybe from PoolSize, I set it to 0 and nothing. I deleted Derived Data Cache and Intermediate Folders, no result.

When I enter in landscape Mode, Sculpt or Paint, and try for example Smoothing or Painting that area, the shadows disappear and then appear back when I move the brush elsewhere,

Also, besides shadows, that part is also very glossy:

I really don’t know what to do. One moment everything was fine, then I reopened the project (I did not do anything in between) and suddenly I have this issues.

I really appreciate any help, thank you!

[XxpiingyxX]

check the output log and material log to see if you have any warnings or errors.

[Micsa_Dan]

I checked, I don’t have any errors. However, I don’t know why but I after I unchecked Enable Edit Layers In the Landscape Details Settings → Paint Mode → Painted with main layer of my landscape material it disappeared as I was brushing on it. This worked for me.