Blitzcrank bug

I have noticed a bug with Blitzcrank's pull that has been happening for the past month or so. When landing Blitz's pull there are times where the enemy champion will be stunned in place but not pulled, or only pulled a short distance and then gets seemingly "stuck" on the environment. This has caused me some great frustration in game and I will try to get a video clip posted in the future of some of these instances. Curious on if there are any others experiencing this issue?