What steps will reproduce the problem?
1. When applying a texture, make your brushsize really big.
2. Now, start applying a texture just at the edge of a border seperating
one square from another.
3. Slowly move your selection field across to the other side of the
border. You should now notice that the texture is not applied on the other
side right away, instead there's like a blindspot for a long time until
you've crossed with about (or maybe exactly?) half the selection circle,
and then the texture is applied.
I would like to see the texture be applied smoothly and consistently
across all squares.