When I or anyone on the realm exits the nether, we do not load into the over world. When it occasionally does but the chunk with the portal dose not load even when removing or placing a block.

What I expected to happen was...:
Over world loads when exiting the nether

What actually happened was...:
Player is stuck in load screen or the chunk of the world where the nether portal sits is MIA. Only way to fix currently is to 

Steps to Reproduce:
1. Enter the nether on my realm. Over world nether portal is 11X11.
2. Exit the nether on my realm (whether exiting by portal or dying). Nether portal in the nether is 4X5.

I have attempted to remove all blocks around the portal, reload the texture packs, remove the texture packs, and move the portal itself.