Alpha Client Stuff

I don't know which board I should put this thread under, but hopefully I can figure out when I post more. x.x

I played a game a few days ago and I encountered something really weird? I was in a PvP 3v3 game with my friends on Twisted Treeline. As you can see from my match history, I was pretty fed (at that point in the game, I had more kills than assists, since I started falling off late game).

At one point in the game I was chasing down two of the enemies with my teammates behind me. I was about to get my combo out when Ahri started walking towards and around the enemies (to the right side since our base was the left side of the map). She walked to one spot and just stood there, not even auto attacking or anything. i would click back to different parts of the screen to retreat but she wouldn't move. If I pressed any keys, they little blue aiming things would show up and would follow my mouse normally but wouldn't actually use the abilities. That was my one death in the whole game. My friends were on Skype with me, so they know that I could not intentionally walk towards two enemies and just stand there.

Before that, it was either my Lux or Lulu game, but something similar happened; I was walking towards the direction of a tower but this time the champion would follow my mouse but not throw out any abilities when one of the enemies showed up. (This was a Co-op AI game) Fortunately I was able to throw some spells, but in that brief period of time, i was afraid i couldn't do anything but run without the assistance of abilities.

I have a feeling this is something that had to do with the new client; I haven't had this problem before on the old one and the updated one is also super laggy. Has anyone else had a similar problem to this?