Do the others have crossplay enabled? That seems to be an occuring mishap.
BUT...
In my experience there has to be something wrong with the crossplay option. My brother and I both own the game on steam. We both have the same username in the steam- and ea-accounts. We both have crossplay enabled.
Still though, trying to invite each other allways fails and prompts to check crossplay options. So the invite fails even though we are on the same plattform, and are, as far as I know and see, using the correct credentials.
The weirdest part is, a friend of ours who owns the game on Origin can invite both of us and can receive our invites.
