In a recent ranked 5's game, I experienced a bug where a single Rek'Sai tunnel couldn't be destroyed by standing or over time. It stayed there for the entire game. It put us behind in bot lane because the enemy Rek'Sai got a gank off that would not have happened if not for the tunnel that could not be destroyed.
I've had similar problems with a Rek'Sai tunnel that was made by an enemy Rek next to the 2nd turret in mid-lane. The enemy Rek could constantly back door our team, and won the game for his team because no matter how many of my team tried to stand on it and destroy it it didn't. Time didn't take it out either and the player could constantly just ult to it when we tried to push.
