Exiting to lobby changes your world correct?

Wondering if this is true, i set my bot to fm for a while with breaks, came back a few hours later and its on a different world.

Sorry if i sound like an idiot for an obvious answer, but is it true that exiting to lobby automatically puts you into another world.

 

No, exiting to lobby just send you to lobby.
When you log back on you should be in the same world, unless you have changed the world.

 

really, arr what the hell, oh well ill look at it again tomorrow