VR environment render glitches

So the way AE's VR appear to work is by duplicating the main comp into comps for each view (front, back, left, right, top and down) then brings these comps together and blends them into a nearly seemless spherical texture.  But because this is really complicated and you're using 3rd party plugins it is possible that some effects are not responding correctly and are appearing in the different comps.  Some "3D" effects might be 2D effects with shortcuts to make them appear 3D.  

Whenever you adjust your comp, you need to use the VR panel's Refresh VR Output button to switch back and forth.  This updates / replaces the precomps.  I generally find I need to get the whole thing right in a single comp, save a new version, then generate the precomps from the VR panel and render out.  If I need to make changes I go back to the non-VR comp and start from there.

VR in AE is a really clever use of AE's 3D space, but there will likely always be glitches.  If you don't need to fly into your purple orb thing, it might be simpler to render out that element and treat it as a 2.5D layer.  This will also cut down final render time too.