Getting kicked out of multiplayer worlds/servers when switching to other apps

This bug has been in the game for a while now. At least on android. Whenever i join my friends' worlds or any servers, and like go to discord and invite someone i get kicked out of the server/world. This also happens when i am hosting my world and when i switch to other app, everyone on the world gets kicked but i still keep on with the world. Fix this, this is the worst bug ever.