Weird lighting artifact on movable static mesh actor

I have 4 static mesh actors in my level. I have created them in Maya 2016, using a poly cube with width 6, height 200, depth 200. I’ve added them to my level and set them to movable so they use dynamic lighting. I’ve already tried increasing the light map resolution, but it had no effect that I could see.

I’ve aligned them to each other, so they have the following coordinates:

  • 0, 0, 250
  • 0, 200, 250
  • 200, 200, 250
  • 200, 0, 250

Here is what the lighting looks like from very specific angles:

But from most angles, the corners like fine but there is a very faint light seam:

And here is a pic with the mesh actors included:

Here are my UVs and mesh settings:

And the other UV channel:

You might have to adjust your UVs. I had a similar issue but was able to fix my issue after doing so. here is a good link that goes in-depth more that should help you solve your problem.

cheers!