Hey thanks for answering! So I played with some variables here.
First I deleted the Second UV channel in Maya and reimported the Mesh, the UE4 generated the second channel, but the same lighting artifact is still there.
Now this is my second UV channel For the light map Before I had UE4 generate it, I used the Maya’s Automatic Mapping tool.
this is my first UV channel which contains the Picture data for my Grass Defuse, I made a flat plane with the projected image, After that i Moved the verts around to create a rounding Mesh and Duplicated the objects and rotated them around? perhaps my First UV channel is incorrect since its not all of the meshes in the grouping?
Could it be also that my FBX options are set up wrong?
I did however notice that the light artifact happens when a light source is directly above it, but artifacts still appear even when the lighting scene changes for example in this video
