I messed up on my facings somehow.
I did something wrong with my neck facings and I can't figure it out. I changed the zipper to zip up the back instead of up the front, so then I took the front facing piece (which would have originally had an opening) and I eliminated the seam allowance and cut it on the fold, and then the back facing piece (which would have originally been cut on the fold), I added a seam allowance and cut two pieces. But now when I sewed the facing pieces together, they don't match up with the neckline (seams or notches or anything) and they are too short overall. What did I do wrong? In the actual garment, both the center front and the center back originally had a seam so I didn't change anything there, really, just moved the location of the zipper.