[GAMEPLAY] Right clicking doesn't work after using chat

This has been happening on and off to me for over a month now. Sometimes after using chat, right clicks will be red instead of green, all abilities then smart cast, and you cannot disengage a target. The bug isn't so much that the right click won't work, but that the left click is held down. I am unable to left click settings or any other part of the hud or shop. This issue is only resolved by force closing the game and reconnecting. Happens to me about 2 times per game. I am on Mac if that is important.