Blitz Pull Bug

I've been noticing, a lot lately, that 's grab/pull ability will pass through minions and grab champs. I'm not the only one that this has been happening to. At first I thought it was a trick of my eyes. But the more I play against blitz and with other players, the more my friends are noticing that every now and then, Blitz's pull will grab you through minions when you are completely blocked by them. I hope that my friends and myself are not the only ones noticing this.