[GAMEPLAY] Mac Client will not left click or pan camera

Hey there! I've been playing recently on my Mac client, and whenever I play a few games in a row, I unexpectedly enter a game where it will no longer pan when I move the cursor to the edge of the screen and I have to double or triple click to get the effect of the left click. Right click works fine. This isn't simply a camera lock issue, because I turn camera lock on and off and it works normally. What doesn't work, however, is my ability to pan the camera and left click, both vital to gameplay.

Whenever this happens, I tend to lose that game (normals or ranked, makes no difference), then try and restart the client to play another game. Sometimes that fixes it, other times I'm stuck in a second game with a severe disadvantage for my team. I'm at a loss because I cannot seem to find what is causing it or any commonalities between occurrences.