So, mainly what happened to me 2 times now is the following.
During the ban or pick phase the Launcher just sort of freezes,
The "0 second" as you can see in the gif just stays like that, while for everyone else it continues.
It forces me to leave the launcher and start it new and puts me into the leaver queue: 5 Mins and then 15 minutes.
Its sort of annoying, since this is a bug from the launcher and anything from me.