UE4 VR Problem: Attached Actors getting dragged after the moving-main actor

Hey Guys,

iam working on this project and i have a weird case and dont know how to fix it.
Here a link to a video, where the problem is shown.

The Problem is that iam going to attach magazine and scopes to the Weapon and when i start moving the the gun, the components get dragged after the gun as shown in the video.

Any suggestions what the Problem Could be?