The game disconnects on the player of console typing "/say The nearest entity is @e". I believe that this is because it says ALL the entities in the loaded world in the chat, becoming an unbelievably long message that the game can't handle. If this is fixed maybe you can extend the chat limit... It gives no error on disconnect.

What I expected to happen was...:
The chat to list out all nearest entities

What actually happened was...:
The game disconnected me from the server.

Steps to Reproduce:
1. Be op
2. type "/say The nearest entity is @e"
3. Be disconnected