I'm new to sewing and have sewn a bag with a zipper.  I did great with attaching the lining and cover fabric to the zipper but am having issues after I sew the product together.  after I'm done, my zipper doesent lay flat at the ends, it kind of sinks.  Ive tried sewing the zipper facing the lining and the cover fabric, and both ways seem to create thes dent.  How can I get my zippers to stick out on the ends instead of them sinking in?  by the way, they are not recessed.

thanks!