Editing LAN world server options causes crash

Put the summary of the bug you're having here

What I expected to happen was...:
The ability to change the name/ip of LAN worlds

What actually happened was...:
Game crashes

Steps to Reproduce:
1. Log into a friend's LAN world
2. Log out
3. The option of 'Edit', which is usually greyed out, is clickable.
4. Click 'Edit'
5. Game crashes