Unclosable Chatbox in way of locking in during champ select

Chatbox from friends messages was in the way of the "lock-in" button during champion selection. Unfortunately, I was in my series into D2 and when it dodged me for not locking in, I lost my series. I could not close the chatbox to get the screen out of the way, so I could not click the lock-in button during champ select and once the timer ran out, it dodged me. Maybe Riot could implement a HOTKEY to lock-in, which would have allowed me to do so. I don't know how to reproduce the issue, but I was messaging a player who then unfriended me while I was in champion select, so their chat bubble disappeared. After that, the issue showed up but I'm not 100% certain. This really just ruined my day completely lol.