I wouldn't call it a problem, just a preference. The wonderful thing about quilting is whatever strikes YOUR fancy is good! I make scrappy quilts often; but they can only be scrappy to a point! There has to be SOME unifying factor for it to work with me; either a unifying color, or perhaps a center of a block that repeats in each block, or border colors that unify the scrappiness -- there HAS to be something!
Hang around, and after visiting many quilt exhibits, seeing the work of others, and reading quilt books and magazines, one day you'll find yourself stepping out of the box! I promise!