Problems Playing Last Night [Gameplay/Client?]

I had two games last night where the system itself glitched. I don't think it was my computer, because the game was selectively responsive.

Here's what I mean by that: There were certain game actions that I could no longer do. In a nutshell: -Could not choose a spell to upgrade when I leveled up -Could not buy items at the shop -Spells were unpredictable, and I was no longer able to aim (I have the game set up so I choose where to aim then shoot the spell, and last night they would simply fire) -Couldn't open up any menus or system preferences. -And I could not get my character to move away from auto attacks until the minion wave was dead(Or, in one case, the tower, which did not end well for me). What clued me in to the fact that it was the game was not only the selective responses, but also the fact that when your character is moving, the arrows that point to where you've selected are green. Mine were red.

Eventually I was able to completely shut down the game client and restart it, and while it briefly solved the problem, I had to do it twice for my second game. Which naturally made the experience less fun.

Some final notes about me: NA, Mac Player, the two games were Normal PvP, first one was Jinx and the glitch happened about halfway through, second was Cass and happened straight off the bat, until I quit, and when getting back on it worked for another 20 minutes or so, until I had to quit again, then it worked for the rest of the game.

I was wondering if anyone else has experienced these glitches? I don't know if it's something new with the patch, or maybe it was my own desktop that had a fit last night? Thanks so much for the time you took to read this, and I look forward to seeing any responses.