Bug PC entering lobby - Ranked Queue

Everyday I play a lot of games. And at least once a day, when I enter the lobby, there is loading square in the middle, and I don't actually get to see the lobby. It gets stuck at loading, but I am actually in the lobby. I know this because when I close this window it asks whether or not I really want to quit, because if I do I will lose lp. I have no choice but to quit and restart the client though because I cant see anything and I cant pick the champion. I lose lp and I have to wait 6 minutes to queue again.

I am diamond 3. And I have been losing lp because of this loading screen stuck when entering lobby everyday. I fear that I will get ban later, because I constantly have to dodge lobby because I cannot see anything - as the screen is stuck at loading. This is ranked queue only. I didn't realize this happen in normal queue.