Minecraft world keeps turning off multiplayer automatically (ITS NOT FIXED YET)

This bug is really annoying, sorry to say it but mojang has to fix this.. Whenever I turn on multiplayer of a world the multiplayer button is on in the menu!!!! But it turns off automatically whenever I get into the world!! And yes this issue was already said by someone but it HASN'T BEEN FIXED TILL NOW! I CAN'T EVEN PLAY WITH FRIENDS OTHER THAN SERVERS LIKE MINEPLEX!!?!!! Please fix it mojang it gets really annoying.