Friends tab issue and invites disappearing

When you click 'create game,' instead of going to friends, go to the Invite tab and enter their Gamertag (exactly as it appears on their gamercard or in your friends list) and then hit invite.

I had the invite but it disappeared and after some weeks I asked my friend to send me an invite again but I didn't receive it. Anyway thanks for replying

If you know your friend sent an invite, pull up the in-game friends menu, go to the party tab and hit the start button. So hard.

If your NAT is strict u wont get into any MP matches (not even with a friend u invite). Be sure to check your 'Network' under 'Settings' in your games & apps tab.

I have no issues with MP.

This issue only arose after making changes to her Microsoft account. Before that, she had no problems. It would appear that this stems from me changing her permisions on the Xbox, but since I removed those, I don’t understand why she still cant see her
friends. If she goes into her world, and invites a friend, she can see who is online and send an invite. But she can’t see them in the friends tab on the main menu, and I dont know that they receive the invitations when she sends them.