Client taking wrong masteries into game [Client]

The client has been taking the wrong masteries into my game, as in, I choose page A but in game I am stuck with page B. The first game this happened I thought maybe I just didn't change the page, but then it happened in the next game as well. I know I had changed pages that game. I then queued for another game and when trying to change masteries it said there had been an error. This all happened in my promos which kind of sucked but I thought you guys should know what was happening. I restarted the client and my computer and don't seem to have the issue anymore