Phasing when multing to sends...

Hi guys, I’m having some issues and I’m wondering if someone can verify something for me. I’ve been trying to do this:

https://www.youtube.com/watch?v=Mi5PeZS47W8
(for those who don’t wanna check the link, its basically using the Waves Kramer Tape in a send and bussing drums NYCompression style to it)

Problem is I swear when I do it I’m getting phasing. Its not drastic, but its noticeable. But I was sure that Cubase compensated for delays. I also tried it with Magneto 2 and it was even worse.

Can someone explain whats happening here? Is this not possible in Cubase?

I’m using Cubase 7.5.20