How to remove improper lines on an object?

I have a 3D object imported from Blender 3.3.4 in .fbx format.

It also contains a UV Map, the texture of which (128 x 128 px) is also available.

The texture has such settings in Unreal Engine 4.27.2:

  • Mip Gen Settings = NoMipmaps
  • Texture Group = 2D Pixels (unfiltered)
  • Compression Settings = UserInterface2D (RGBA)

The main problem: when moving the camera, colored lines flash on the edges of the object, which should not be there.

When setting up a project:

  • Anti-Aliasing Method = Temporal AA

The situation is getting much better. These lines are almost never noticed (but sometimes they still appear).

But, is there a way to get rid of them when setting up:

  • Anti-Aliasing Method = None?

Blender project, ready to import .fbx, texture can be downloaded here: Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

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Hate to tell you, but it’s the same problem as before. You need to separate your UV islands, otherwise you will get this crossover problem.

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