Right-left click bug in-game

Hi, it is been awhile I wanted to repport this bug. Since 2014, sometimes when I intensively spam my right side of my mouse, my LoL just hide. Not that terrible, but if I have to run, it is kinda frustating. Sometimes, on the shop, I can click on ''buy'' and it gives me the same bug. Hell, even when I click ''+'' to upgrade my abilities, it rarely does the same thing. I had the same problem with my laptop. I have nothing open. Anyone has the same problem or/and have the solution? Except like ''Send a report to riot, get a new PC and scan your computer please. thank you.