How could I fix wrapping UVs error?

Hi, everyone. I’m having a problem when I convert a BSP object into a static mesh.
In fact, when I build the level, it gives me the “Object has wrapping UVs” error. [img 1]
The object I made is this: (is it a problem if there are two overlapping BSPs?) [img 2]
I’ve also tried to set the lightmap index to 1 but nothing changed.
Here are UV channels 0 and 1: [imgs 3 and 4]
Could you help me?
P.S. sorry for my bad english

Occasionally I get problems like that when my lightmap resolution is too small, though that may not be your problem.

To test, try increasing your ‘Min Lightmap Resolution’ to 128 or 256 and then ‘Apply Changes’. If this doesn’t fix it, then feel free to set it back to 64.

When it isn’t a matter of the resolution being to small, I typically do a more complex unwrapping of my mesh in 3DsMax and that fixes it. Though I am not familiar enough with BSP objects to know if you can do that.

Thanks a lot for the answer. I’m going to try it tomorrow and tell you if it works.

Ok, I’ve tried this but, unfortunally, it seems that nothing changed.

The UV 0 is still strange.

Update: Unreal Engine 4 Tutorial: 2nd UV Channel (english) - YouTube
I’ve used this tutorial and now there aren’t errors but there are some light bugs. Do someone know how I can fix them?