Can't join the same worlds on Minecraft.Can someone help please!!!!

Our versions are the same and I dont believe either of us are in beta. We were both able to join another friends world but for some reason we cant join each others worlds. Someone please help

Hi and thanks for reaching out. I hope you’re doing well. I'm an Independent Advisor and a Microsoft user like you and I'll be happy to help you

In Minecraft, your friends can't join a world that has a texture pack that they do not have installed. If you have a texture pack installed on your world, your friends will need to have the same texture pack installed for them to join and see the world with the same textures.

Nat type is either strict or moderate, I tried fixing it and went through the web for solutions but none helped to fix it. The thing is I can play all the other multiplayer games with no problem but only minecraft is giving me problem and that too I can
join his world and play but he can't join my world. My Xbox live is logged in and it's working and that is how I can join his world. I don't understand what's the problem with this now. The same problem persists with minecraft pe that I just bought, I can
join my friends but they can't join my game. Note we are not connecting through lan but through multiplayer option, as per the new update which enable us to join our friend's world if they're friends with us in Xbox live. Please get back to me soon, I took
so long to reply as I was trying to fix the NAT type.

I have the same problem! I can join other people’s worlds, but when i create a world people can’t join my world even when I invite them. I have cellular data does that have anything to do with it? When i go into settings in Minecraft it wont let me turn
on friends of friends. Please Help! It is ios.

I have gone through all my privacy settings and allowed the one to let me play with people outside of xbox live. I have paid for a Nintendo switch online membership and allows me to join servers. But when I go to invite someone to my game it doesn't let
me. Then when I go to make the world multiplayer it's grayed out so I can't make it a multiplayer world. I don't understand what is wrong. Please help.