[GAMEPLAY] Heimerdinger camera lock

In my most recent game as Heimer, I encountered a bug that permanently locked my screen into following my champion, this was not resolved by pressing Y or clicking the unlock camera function. http://matchhistory.euw.leagueoflegends.com/en/#match-details/EUW1/2378953591/40898001?tab=overview

The bug started around the 11 minute mark (after purchasing NLR) after repeatedly pinging "Back" at Ahri (who was dangerously close to Xin and Darius while on low life) and persisted until the end of the game, including not panning across to see the Nexus exploding when I was in fountain. This made it very difficult to plan anything as I could not pan across to see where Xin was standing while he was low on health. It also prevented me from teleporting to my top tower as Xin's icon covered the tower not allowing me to teleport using the minimap.

This is not the first time that the camera lock bug has occured, but it is the only time it has persisted until the game end. Other times lead me to believe that it becomes resolved when my character would die. However, I was playing Heimer in a 4v5, as such the game was over very quickly and I did not die once before the end of game.