[CHAMP SELECT] Masteries selection bug

I just got done deleting a bunch of mastery pages and they are gone in my profile page, but in champ select they are all still there. when selecting one from the dropdown list in select (where all my old ones are still displayed) it shows as selecting where the new one is in the order. For example, I deleted page 8...page 8 still displays the old page 8 in champ select dropdown, but when selecting it, ends up being what was page 9 before deleting page 8 (like the array is off in the code).

I know it sounds confusing, but it's really weird and annoying when selecting.