Fizz Bot on Intermediate Bots is broken.
I was levelling a new account with my boyfriend recently and Fizz Bot was extremely broken. He would walk to lane, walk around for a bit ignoring minions and players, until he eventually died. No matter what. If the lane was pushed, he walked past the minion waves and players, on his way to the center of the lane, ignoring us as we killed him. The next game I played that had a Fizz bot he AFK'd even though my team still had all five players.
I have a recording saved and if needed I can upload it so Riot can get a better idea as to what happened.