Are you sewing through the ¼-inch seam allowances? Don't. Unstitched SAs allow them to be moved/changed direction when pressing. Where four or more seams come together, press them in one direction and the seams will lay down like a flower. Pressing is an up and down motion, not sliding back and forth.
It's also better to reduce the stitch length when beginning or ending a stitching row. I drop the length to 1.5 for about ½-inch at both ends and increase to 2.5 in the center of the stitching row.
That said, your block looks great and appears square! Way to go...
Sandy Quilts