[Client] Champion Select

In my last 2 ranked ques I have been in the scenario where I was about to chose a champion with 5-10 seconds left on the countdown and the lobby shuts down and tells me that I did not choose a champion even though I had enough time on the to still choose. I got kicked out of my promos because of this and it is starting to make me kind of pissed off. I dont know if pick or regular games has the same problem but in ranked it has happened multiple times. If we could this problem that would be great. Thanks!