Originally Posted by
Peckish
Okay now I'm confused. That's not an Ohio star block, and you don't have to worry about seam allowances on that block.
I think that is one of the components of the ohio star block - the pointy units.
That looks good - the center of that unit is matching up nicely. The problem is probably occurring when the side squares are sewn on. That is where the 'right' seam allowance matters.