@EA_Ataashi I just wanted to let you and my fellow gamers in this thread know I have found another workaround for Xbox Social Hub error. This requires one person who the error isn't affecting. (I know a needle in the haystack... but really there are some.) I have one out of my 100 + friends so far that this has worked with. They have no issues with "Social Hub" (SH) and can, therefore, add all in the party to the game by clicking on the SOCIAL HUB. They also don't have the grey unclickable link on the invite party to game. So either way, they can make a party. For those who don't have a buddy without error, they can do the following;
Start a match of "Galactic Assult" (picking this is because of the 20 v 20 gameplay making it easier to add people to the game.) and going into a match. Once they are in the match they have others in the party click on the "View Profile" of that player and then click "Join Game" once in the game the person who went in first can now send a "Invite Party to Game" invite that will squad up the team. This will make everyone have the normal outline of green. If the goal was to play Galatic Assault this is your workaround, but if you want to play Heros v Villians you will need to do the following. Once the match has finished everyone can click "Quit Game" this allows the whole party to arrive back at the main menu in a squad. From there, anyone can click on Play > Multuplayer. Heroes v Villians. As long as the party is four people you will all go directly into the game. So those workarounds are confirmed to work because I tested them. Hope this helps in the meantime until EA can get this in the "Fix it" queue.
Cheers,
Paodok
Xbox ID: Paodok
Youtube: Star Wars Insiders
Twitter: InsidersSW