Can't Start Simulacrom or Mastery Test Since Silver Grove Update

[(XBOX)ChewyAM]

I've noticed that when I go to any Relay (after landing animation) I immediately get "Network Not Responding".  This intermittently stays on, but mostly it's on.  When I go the Cephalon Simaris area, choosing Simulacrom, talk to Cephalon Simaris and engage Simulacrom, or start any "Mastery Test", the screen will pause for +/- 46 seconds, then I see the "Landing Craft" animation and I'm back on my Landing Craft.  

I've been a member for quite a while now and I've never experienced this kind of issue.  From my perspective, I've only seen this since the Silver Grove update(s).

I do not have any issues running missions, buying stuff from the Relay (Cephlon or Baro) or any other Relay issue...Any idea's or is this a known issue?