Two Issues with match history

I found a couple issues while in my match history, and just wanted to bring them to attention.

The first one I noticed about 2-3 patches ago, when I was creating highlights to show my sister. Sometimes when I exit a replay, I can't look at any other replays of games that were played at a later time. I have to change tabs to get to look at other replays again.

The second I noticed right now; I just had a game DISAPPEAR on me. I played a custom game last night, and it showed up on my Match History when I logged on. After resolving the above error a couple of times, however, the game was erased. I know this because my "recently played champion" percentages went to 11%, 11%, and 6% instead of 10%, 10%, and 5%. Also, match history told me I haven't played a fighter in the past 20 games (which is false; I played Wukong in the custom game).

I don't know of any way to show screenshots, but nonetheless I do hope this helps! I know bugs can be slippery little things, and every alert helps.