Terrain Painting not adding layers (ONLY AFTER I USED WORLD COMP)

Hello,

I had an amazing texture set up that I was using on a not so optimized terrain. So I created a tiled landscape from height maps and uploaded it via world composition. Now when I compile the shader it only shows the mountain layer, the grass layer will not show. Is this a known issue, am I doing something wrong? What is the work around for this because its severely hindering my progress. Below is the picture of my grass, the layer that is not showing.

52393484946d62d3776a1c903e07e7f1d0a1440e.png

Well I fixed that issue now its just not allowing me to actually paint on the terrain, just filling in the whole component with the texture I pickā€¦ Pretty annoying I seem to be running into issues everywhere, there has been countless threads I have read with the same problem and no actual solutions.