Invite to game not working, after update not showing any players "Requests" on left.

I use ovr_Room_LaunchInvitableUserFlow to bring up an Meta system menu so I can choose who to invite.

This has been working until a week ago when testing but possibly could have been like this for a 2/3 weeks.

There is no list of players, it just says "Requests" in the top left of the screen and the rest is empty.

I am running the game from a developer build installed from android studio, if that makes any difference. I don't think this made any difference in the past though.

Keep thinking of querying the players friends and just displaying an in-game menu instead but seems a shame to not use an interface that is the same for all Meta games.

Thanks for any help.