[GAMEPLAY] Yorick Maiden stands still...

When Maiden was is left alone in a lane after a teamfight and clears all the things around her, she stands still. The ghouls around her continue down the lane but she does not. I had this happen three times during the game. -The first time the Maiden fixed herself when Ahri walked into the Maidens auto range. -The second time I am not sure if the minions colliding with the maiden fixed her, or she was waiting for them? -The third time she stopped and stayed there for the rest of game. She did not even move while I was in combat clearing minions or fighting Ezreal, but Yorick might be too far from her to call for help at that point?

All three examples are present in the video. Maybe I am missing something here but I thought I would post it just in case it is a problem.