Static Mesh object has overlapping UVs

[Jafar013]

The erros are:
Static Mesh object has overlapping UVs
Static Mesh lightmap UV are overlapping by 50%
The color of the texture of the maze is white and it has became black!!!
please help me

THE RESULT:

[CocoFresco]

@Skulldug

Try double klicking on your mesh, that takes you to the mesh viewer. On the top toolbar click “UV”, click the highest uv channel(eg. if you have "uv channel 1, 2, 3 click 3, if you had “generate lightmap UVs” clicked when imported that uv should be the lowest on list use that one), if you still get an error go into the “Details” tab in mesh viewer, in the search tab type “lightmap” that will bring up some options, in general settings, set “light Map Resolution” to double what it is currently set at. you may have to do both to get rid of overlapped uv error. als how does the mesh look in mesh viewer, is it also dark?, if not check your sky light intensity may be too low… I hope some of this may help !

I had the same error message as the op and I followed your instructions which were really helpful but not completely satisfying. The textures/uv-/lightmap of my mesh do look better now by increasing the lightmap resolution which now is at 4096 but there are still some artifacts showing up. Also there were added some new ones.

I don’t think that still increasing the lightmap resolution to fix this artifacts will be performant. What else can I do to get a better looking lightmap?

[Joshianian]

I am having the same error log still couldnt find a solution.

However, to solve dark shadows on your assets as temporarily please follow,

pick your asset or mesh > search light on details panel > uncheck and check the overriden light map res

with that you will be able to see the shadows corrected.
If anyone finds how to fix the error log as the poster shared above, please help from here.
Thanks.