Can't edit particle system like "P_vectorfield" in v4.7.3

Hello,

I recently upgraded to UE 4.7.3 and I’m trying to address issues that I’m encountering. One issue I noticed is with the base Example Content that comes with Unreal Engine.

When I try opening “P_vectorfield” in my project using UE 4.7.3, nothing gets displayed. I tried changing the view modes from “lit” to “unlit” and vice-versa and still can’t see it. I discovered this when I realized that it doesn’t get rendered in my game any longer having switched over to UE 4.7.3. Other particle systems do get displayed and I’m able to see them in UE 4.7.3 Editor, however.

I don’t have any issue when using UE 4.4.3.

Any feedback is greatly appreciated. Thanks for your time.