Attempted Habitat Destruction (Rek'Sai Bug)

Played an ARAM in which Rek'Sai had a tunnel in our base that we couldn't destroy. We stood on one end, and the other end collapsed, but the one we were on stayed. She couldn't go through it (since it had no other half), but she could still ult to it, which basically made the game unwinnable (since we couldn't push out without her ulting in).