Mastery Bug! :(

so hopefully this makes sense.

• when you go to "click to view/edit your summoner profile" when signed onto client.

• and it gives you the option to look up other summoners. so lets say i look up Phreaks summoner profile

• i do this so i can view is runes and masteries.

• when i exit out and go to "normal team builder" and pick my champion and lane.

• then i pick my runes and masteries.

• the mastery selection will include 2-4 of Phreak's masteries. and when you click on them it says invalid master page.

• so the masteries from the summoner you look up and yours are getting mixed into your master selection process.