Issues adding an overlap image onto a 360 video

I have a 360 video in Premier Pro and I want to add an image or transparent video with floating objects onto the video. But when I view the video in VR mode on premier pro, the image doesn't move with the viewer, it stays in the same place. Does anyone know how to move the image with the viewer, so when someone is wearing a headset and they turn their head the image still stays centered.