GAME BREAKING BUG: mouse click not registering.

This started to happen today, right after the patch, my mouse just doesn't respond like third of the times, the mouse is perfectly fine with other games, but whenever i play league, my mouse just stops responding at sometimes. have to click like 5 on an item that i want to buy, and issuing commands keeps causing me to walk to where im pinging, which caused me to lose my last game cause i walked into the enemy team without noticing when i was trying to ping. anyone's been having this issue too? RIOT FIX THIS ASAP PLS PS. im using the logitech 402 mouse.