[Client] Looks like one mastery page is selected, while it isn't when going to ranked after blind

Played blind pick game with Janna support runes and masteries. Shortly after, I switched to ranked draft, and selected Annie Mid. The mastery dropdown list was already set to my Annie Mid page so I didn't bother clicking it, but when I got into the load screen, I saw the Windcaller's Blessing logo under the champion portrait. Yup, they didn't actually switch.