Wrapping UV's on LOD's

Hey guys ! When i impot my meshes i use import LOD mode then it auto-creates LOD’s for it. The problem is in my lightmaps when i build i get wrapping uv’s everywhere by 1-10% on every meshes. i can see black shadows spots on some meshes and the build time for my map gives me like 3k errors . I use auto generate uv’s and i can see that i have 2 uv sets by the way.

thanks in advance

there’s no wrappind at LOD 0-1 but when the percent triangles comes below 80 at LOD2 uv’s wrapp