I need to set scale to 1 to keep the position after a reload. If I set it to 0.85 ie, then move the frame where I want, after a reload the position is not the same.
Out of curiosity, is 'Use UI Scale' checked and set in the WoW Video Options? If so, approximately what is the scale set at? I'm wondering if that has anything to do with the problem. I wouldn't recommend changing that tho, unless you want to reposition your whole UI again.
Oh, and as Sorata mentioned, it may already be fixed in the next build. Cross your fingers ;)