Alpha client mastery Bug

Hey I got added to alpha client, looks fantastic but....so laggy, its absurd how much it lags and slows down my computer just something I thought I should tell you. But the bug is that I got mastery 6 on kha on the new client, next time I load it it tells me i got mastery 6 on kha again, I go back to the normal client, after a little i re open the normal client. I get told mastery 6 on kha has been achieved and I got a mastery 6 token. Just a bug I thought I should share.