@Arkiras I have the feeling that the alphas are indeed self-shadowing the planks, but the lighting scale is at 0.1 and IGI quality is up to 10. The blotches are way over the top and I started to check around the lighting threads that MostHost LA’s comments seemed to point to… I am currently downloading 4.23 to check if the issue is resolved with an older engine version. I can’t use the blueprint method as I am making this for an asset pack that will be sold on the MP…
The alphas are merged with the planks (same mesh).