I get very aggravated by this. I recently did a baby quilt and could not even get a 5" piece that was straight with the pattern. This is a slightly different problem that the wonky cuts. Those are bad enough, but the twisted pattern/ fabric grain is even worse. I come from a background of sewing garments and like cuts on the straight grain of the fabric. Problem is with a lot of fabric, even the expensive bolts is that the pattern is so crooked you cannot square up and end without losing a lot of fabric.