Sometimes when me and my sister want to play Minecraft we join each others worlds and a lot of the time when I go onto my world for my sister to join it doesn't show up in friends and we are always properly connected to wifi so we both have to restart our devices at the same time to sometimes be able to fix this, but today it is showing up when my sister goes onto her world for me to join but when I go onto my world for her to join it does not show up in her friends tab