Bug: The longstanding well known bug where the client's connection times out during champ select (in client chat and non game related internet activities are unaffected). This results in being unable to pick or ban champions counting as a queue dodge.
New bug with the beta client:
The old client would after 20 to 90 seconds give an error report "your connection has timed out". Pressing ok on that error would instanly reconnect you, giving you a slight chance to pick or ban if the error popped up quick enough.
In the new client the error reads "there seems to be a problem with your connection". There is no ok button to press and the time out is permanent, leaving you stuck in champ select with no way to reconnect. Like before, chat is still unaffected by this time out.