I am having a issue where the welt I have sewn is coming out all wavy ( see pic ). Can't figure out what I'm doing wrong . Using the same 1/4 welt cord I use on everything else and have never had this issue even using the boardy marine sunbrella . This fabric is very expensive and i'm freaking out !! Pushed it to the side for a couple days and figured I'd ask the masses here . Thanks for looking !
https://drive.google.com/open?id=0B6r5R47xqSPqbEh3ZExVWjFFNWc
https://drive.google.com/open?id=0B6r5R47xqSPqbEh3ZExVWjFFNWc