Problems Fabric.

We have started to sew our front panels together to create the blocks however none of the blocks seem to be working out. Even though all the notches match up the blocks seem to still turn out wonky. We have had to re-cut a few pieces as they had been mitered too much and so was impossible to work with. I think the fibre content of the fabric also has a part to play, as it is made up with 2% of Lycra yet we didn't anticipate it affecting the process as much as it has. We have found that the fabric tends to slip and stretch in the wrong places. We have checked with the samples that we had previously before ordering and believe we were sent the wrong fabric.