[CLIENT] Not gaining a Mastery 6 token upon getting a S/S- in the game Mastery level 5 is gained.

In the game that i unlocked mastery level 5 Sivir, i also got a S. when the game finished the pop up box for mastery level 5 came up followed by the pop up that explains how to get mastery level 6 tokens, and then the pop up that says that you have gained a mastery level 6 token came up. but when i went into the hextech crafting menu i didn't have any mastery level 6 Sivir tokens.