Resolved Polybrush doesn't work on My Terrain Tiles

I'm trying to paint my terrain vertex colors, however no matter what mode I use the polybrush mesh script as, the brush does not appear, and a single square appears on my mesh. I'm not sure what I am doing wrong. My mesh is made of quads.

 

For anyone with a similar issue (since I couldnt find my solution online) you need to make sure the origin of your mesh is in the center of it, or else it won't work.
I had to re-export my terrain tiles with the origins set to their center position instead of a terrain chunk pivot, and ensure bake transforms was checked.