Darius E not behaving properly

The first link up there is showing how it currently works. It works in two parts. Part one is tagging all enemies and in range for pull when it is first casted. Part two is the animation and pulling them. You used to be able to flash between part one and two, the way spells work in the game. But now, you can not. Flashing, or using any sort of dash between Part one and Partt two still reults in you getting pulled

Here is a video of how it used to be: https://www.youtube.com/watch?v=G7xLjXMeJQk

Anyways, been like this for a long time and it is pretty frustrating