[UI Glitch] Champion select screen - Causes an invisible window - cannot select or chat after

Hi,

So this has happened to me five times.

What happens? I select a champion and immediately afterwards I cannot select anything, minimize, chat- as a reuslt I cannot select the masteries/runes/summoner spells/etc - this is pretty game breaking. After the game ends, there is a transparent window covering the entire score board and I am forced to Force Quit/Close the game via Windows and etc - I can still see chat but its still unresponsive

How to reproduce? I find that selecting the champion and immediately clicking anything causes something to glitch/loop in the UI

How to circumvent? A few times, while being in this glitched mode, I was lucky by using task manager and expanding the League of legends task and expanding the PVP.EXE/bringing to front. This doesn't always fix it

Thank you