invite to game is greyed out...cannot join a friends game...minecraft

Are you, or your friends on a test build of the game by chance?

If you're on a test build, that does not always let users join games.

Also the option to join or invite to game from xbox dashboard is greyed out. I imagine this is because we don't have Xbox live gold, but i guess it could be an error with the game.

We've also tried sending the invite to each other from each xbox and with multiple worlds, also tried with friends of friends, friends only, and invite only settings.

My son and his 2 friends are trying to play Minecraft together by joining the same world. My son is hosting on his android-device, and have sent a invitation to each of his friends.

We have tried the following:

Case 1: "Friend 1" gets the invite, and joins the game. "Friend 2" gets the invite, at tries to join the game, but gets a time-out.

Case 2: "Friend 2" gets the invite, and joins the game. "Friend 1" gets the invite, at tries to join the game, but gets a time-out.

Case 3: "Friend 1" creates a game, and "Friend 2" joins and can play. My son tries to join but gets a time-out.

The maximum player-limit is 10, and they are 3 players in total.

What can be the problem, when both of his friends can join individually to my sons game, but when they try to join the same game one of them gets a time-out?

Same issue: Can't join an unofficial Ark server due to this. What the Pfargtle?

I am also having the same problem and cannot join a unofficial server on ark due to this