Kalista ulty bag [GAMEPLAY]

Whenever Kalista ulty me (Kennen) and I dive in enemy team it blinks me right away back to Kalista. 3 games in a row. I don't know is it Kalista bag or Kennen. Did like over 20 times during 3 games and always the same. I can't menage to get screen shot since it happens in less then a second.