Hello!
I’ve run into this a couple times now, and would love to see if there’s a simple solution. Basically, if the install is using WordPress SEO, it adds the “WordPress SEO by Yoast” meta-box. This box has a way of fighting for the top, since it’s apparently in High Priority. If I apply the Order field to any of the meta-boxes on the page, the SEO box immediately goes to the top. I’ve tried using High and Core Priority.
So this ends up meaning that if I want the meta-boxes above the SEO meta-box, I can’t order them manually. Otherwise they’ll all be below it.
Any thoughts on how to get around this? Possibly change the SEO meta-box to the Advanced Context?