Grass bug?

Hey thanks for reading in advance.
I seem to have this annoying problem with grass that whenever I try and place the actual grass blades it seems to only want to place them in one circle. Is this the way Unity works? or Is there something I am doing wrong? I would love to be able to put grass in more then just a small circle of my terrain.

Depending on how far away your view is in Scene view from the terrain, and what distance you have the draw details set to on the terrain (works in the scene view as well as game view), you may see a circle of grass that is just what’s in view right now. Because there are so many grass objects, you’ll never see every single one on the entire terrain at once.

If you are referring to the brush shape, all of the brushes are essentially circular in the area they paint on, but of course you can paint around to fill in whatever shape you want.