Welcome from NJ. I think the bigger question is the the design printed crooked on the fabric or is the FQ cut crooked? Are you familiar enough with fabric and sewing in general to know about finding the straight of grain of your fabric?
If the design is printed crooked on the fabric, there's not much you can do about that other than cutting the image straight and not worry about the piece of fabric being 'on grain'. If the FQ is just cut crooked, you can straighten the piece of fabric and then continue with cutting your 9.5" pieces.
If the couple of pieces of fabric that are giving you trouble are not truly on grain, it's not going to affect your quilt by any significant amount, in my opinion. There are many of us that don't always get our fabric truly on the straight of grain.
Good luck. Let us know if you still have questions.