I have a tiled terrain that is generated on runtime. The diffuse texture of each terrain tile is a real-world top-down camera image, so I want the visuals to have as little automated tampering as possible. However, on the very edge of each terrain tile, there is one very small strip of more shadowy area, as can be seen below. It seems to be shadow bleeding, from what little information I could find. But might be something else? What causes this and how do I fix this? Do note the image below is already about as zoomed in as I could get it. Thanks!