What I expected to happen was...:
When the second player in splitscreen logs out, the first player should resume full screen play. 

What actually happened was...:
When the second player logs out, we get disconnected from the realm entirely and it says "disconnected from realm"

Steps to Reproduce:
1. Play in a realm with two players
2. Second player saves and quits

3. the entire screen shows the brown "disconnected" screen.