Ascension/Crystal Scar Bug ft Kassadin

http://plays.tv/video/5738ccc654a5733fdf/-bugged-leagueoflegends

As I was playing Hide and Seek with a few friends I noticed I had moved to the edge of my base but I couldn't move. I tried using my ultimate and was still bugged. Didn't try Flashing/Trinket but as far as I'm aware those 2 remove the bug.