Whenever I try to join my sisters world, it says "Unable to Connect to World". The same happens when she tries to join my world. We both have tried restarting our phones or changing our wifi but nothing seems to work. We even tried connecting through LAN, but that didn't seem to work either. It's weird because we have no difficulty joining our friends worlds, only each others. I hope this can be fixed soon because I really want to play with her. Thanks!