Can someone please explain this mischief!

[Chief149]

so how did anyone get to that island to reveal it?

 NotABronie how does the world border not effect you?

[Nick3306]

so how did anyone get to that island to reveal it?

 NotABronie how does the world border not effect you?

1 of 2 things happened

1. One of us ventrued out that far while we were setting up the world.
2. It's an error with the livemap, i have seen it before.

[NotABronie]

so how did anyone get to that island to reveal it?

 NotABronie how does the world border not effect you?

False. It does affect me. It make me feel like a caged animal.

[jcgaming]

is there a chance optical found it?