Right clicks not registering

In the last month or so I've noticed that league of legends is not registering all my right clicks for movement and attacking commands. It happens randomly and not in every game, but once it starts the game is basically ruined. You lose the majority of control of your champion when you can't move them properly. For example if I was in lane and I moved forward to poke or CS and then I right click back, the green arrows that indicate the movement command don't appear and I keep moving forward towards the enemy. Once it starts it seems to only recognize about 50% or less of right clicks. I primarily use a razer mamba with all of its drivers updated. I've tried another mouse as well and it does the same thing. Luckily I did, because I was about to buy a new mouse and that does not appear to be the problem. There are other posts on reddit and the forums (see above link) with this happening to other people. I have lost multiple games including ranked because of this bug that appears without warning. as soon as it starts the game is basically lost... it is starting to ruin league of legends for me.

Riot Please Help!!!