Forced Champ-Select Dodging for Mac

Over the past week or so, several times I have been in ranked champion select for mac and at some point, usually during the first couple of bans, the champ select will freeze. The background music will still be there, the ticker/countdown sound will still be going, but it will go all the way to zero and the champ select will not end as it would usually when someone fails to make a pick or ban. Then, about 60-90 seconds later, I will be returned to the home screen with a nice little "you have dodged and have to wait 5 (or 30) minutes" message. Please fix this!!! I hope I'm not the only one having this problem, but it is becoming more and more frequent for me and I am playing on a brand new computer so I doubt that it is just my computer glitching out. Thanks so much!!!!