League lags out at 28 seconds remaining

Whenever there is 28 seconds remaining on either my turn to ban, or my turn to pick a champion, it will always completely lag out, and the timer will stop for me, but will continue for everyone else, and everything will freeze, but the little animation things will not. For some reason, it only happens at 28 seconds remaining, but it has happened once at someone else's turn to pick. Has happened 3 games in a row, all tonight, in Ranked solo/duo and in Flex. It causes me to dodge, even though I don't want to. I still lose the LP, and get a penalty.

Please look into it, thanks!