I always get this way on New Year's Eve.
I thought I had it on the longest stitch, but maybe I didn't.
You're supposed to use a large stitch when you do gathering--if it's too small and tight it won't move.
Sounds like a Butterick!
That's odd--I remember I used to get patterns from the usual companies, if I recall it was Simplicity and another company, but I remember my mother (who taught me how to sew) saying that Vogue patterns were really hard, so maybe it was the company.
I also used to find if I ever did sew at night when I was tired I'd make a lot more mistakes.
You're very brave to do a coat! I made a suit jacket for a child once and he wore it...once.