Now you know one of my deep dark secrets... I am button band challenged. Trying to pick up the correct amount of stitches makes me perspire. On my first attempt, I tried to pick up 2 stitches for every 3, and this time I was trying to pick up 3 stitches for every 4.
Too few stitches. This is beginning to sound a little bit like the three bears in the Goldilocks story.
I think this can be corrected somewhat with blocking. maybe. I won't rip it out yet. I like the way the buttonholes turned out - not too obvious and well spaced.