Okay so I was in my friend's tribe house and I said "Im gonna edit the map" And when I clicked on map editor I just stayed in the same room.

You just need to refresh, this might be from clixcking and going to many rooms or too many tabs, or just lag. just refresh and that should do.

No, you don't.

It's a satellite server issue. Try to go to another room and then go to map editor.