I was running into this issue for two hours today before I figured out what the problem was, and I didn’t find any questions addressing it, so I am proactively asking:
When you make an Angle Gradient in Photoshop, the gradient appears perfect. But when you import it into Unity and use Transparent Cutout, the rate of fill-in is extremely sloppy, so instead of getting a smooth angular progression, you get what looks like ink pouring onto a napkin. Why does this happen?