Mac Gameplay bug

Hey in my last recent game i was playing my mouse left click stopped responding to every click and instead chose to respond to double clicks, my camera wouldn't work and when i pressed Y it wouldn't lock onto my character the only way i could move my camera was with the mini map which was extremely difficult. I tried to exit the game and re join but that didn't work so after that i exited the client and re opened it and entered the game again but after my second attempt it still didn't fix my issue. thank fully my team were nice enough to be okay with my problem, and finish the game without me but does anyone know why this has occurred and any way of fixing it?