During champ select, it freezes when someones count reaches 0. Not a internet issue

me and a group of my friends are experiencing this issue where in champion select it will load into the lobby and at random will freeze when someones counter reaches 0. it stays on 0 and all screen animations still work like previewing champs and being able to change summoners and runes but nothing changes and it is still stuck on the last action from the client on 0. so when it comes time to choose a champion and lock it in, we are unable to complete this action. we can still talk to chat and when it times out, everyone leaves lobby and i sometimes have to wait for about a minute for it to kick me from lobby as well. please help!
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