Invisible Entities

What I expected to happen was...:
Player dies close to Spawn Zone (SZ), then returns to SZ. All items and monsters (entities) are in the same place and rendered.

What actually happened was...:
Player dies close to SZ then return to SZ and all entities are not visible. All the sound works, monster do attack and the invisible items can be picked up.

Steps to Reproduce:
1. Be in the SZ chunk.
2. Die by monster or anything else.
3. Do Respawn and check for fallen items.