[Gameplay] Rek´Sai Tunnel indestructible

Hello there, Today while i was playing Rek´Sai on the Top Lane and i made a tunnel that went from the first Bush to the second Bush (from left to right) and i noticed it was missing the white Bar that shows how long the tunnel will stay there.Now i was wondering if it can still be destroyed by walking on it.I asked the enemy to do it.He walked onto it but nothing happened. The animation wasn´t triggered. The Tunnel was there for the rest of the game. I was able to use it as usually. It was the only Tunnel that was bugged. If it matters,im using the Eternum Skin.