[CLIENT] Correct IP Not displayed after purchase

Frequently when I make purchases in the store using IP, the IP i spent is not deducted from my displayed amount of IP, though clearly actual account memory knows how much I have. As the screenshot displays, it says I have 526 IP. That is enough to buy Soraka, who costs 450 IP. But if I select Soraka, as shown, it knows I don't actually have enough IP to purchase her and will not let me make the purchase.

This has happened before on numerous occasions, and I should have reported it sooner. It also happens while buying runes. I had not noticed a similar problem with Riot Points, only IP.