RP shows up wrong

Yeah, so I just bought the new Thresh skin. I was sitting at 10 rp before I purchased the 1350 then it should've gone down to ~400 or so (too lazy to do math). Anyway, I'm sitting at -560 right now according to the client, but when I went in to purchase a mystery gift for a friend, it showed the right value I should've been at. I'm sure it'll change back when I refresh the client, but I thought it was funny.