Put the summary of the bug you're having here

What I expected to happen was my world would fully save on my friend's iPod touch...:
Describe what you thought should happen here

What actually happened was it only saved around ten blocks of my where my friend set his spawn:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Join game
3. Set a spawn and save world