Ue5.6 landscape bug?

i upgraded my project to 5.6 and the landscape had a darker color in some tiles , in 5.54 it was ok!
i tried importing this landscape in a fresh project , but allways got the same error, also rechecked my maps , but they are ok!
to illustrate the Problem here a pic:


100% quadratic and starting/ending at the edge of a tile

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I have the same problem, I have tried everything possible, even creating the same thing from scratch, but the problem does not go away


Hi there! I have the same problem — I’ve tried everything I could, but nothing helps. It really looks like a bug in Unreal Engine 5.6.
Has anyone found a fix?

I tried a blank project, and i tried the most simple landscape material possible.

Seems like just a bug with 5.6 when trying to use auto material + painting multiple layers. If no one makes a bug report i will once i get to my PC.

i submitted the bug today, Case # 19642873

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Hi there! Does everyone find a fix for it?

You seem to have exactly the same issue as we do.

Watch those shadows, they are a copy of a part of your map (just a little bit below the box), they are the same surroundings as your landscape shape has.

Our landscape shows the same pattern, like a shadowcopy of existing shapes.

This might help the team eventually to evaluate the source of this bug, im pretty sure its a UE5.6 thing.

Another interessting thing:
If you paint landscape layers in an area where those weird shadows are, while holding L-Click on the mouse, the shadows disappear.
As soon you release L-Click on the mouse, they reappear again.

I also have a post on this issue, seems to be a 5.6 problem that hopefully is fixed soon.