question

I'm getting this error when changing the player role

/Group/ChangeMemberRole: Unable to move the following entities from the origin role because they are not members of the role:

This is my code:

        public PlayFab.GroupsModels.EntityKey EntityKeyMaker(string entityId, string type="group")
        {
            return new PlayFab.GroupsModels.EntityKey { Id = entityId , Type = type};
        }        
        public void PromotePlayer(string player_id)
        {
                var entityKey = EntityKeyMaker(player_id, "master_player_account");
                var request = new ChangeMemberRoleRequest{
                    Group = MyGroupEntity,
                    Members = new List<PlayFab.GroupsModels.EntityKey> { entityKey },
                    DestinationRoleId = "admins",
                    OriginRoleId = "members",
                };
                PlayFabGroupsAPI.ChangeMemberRole(request, result => 
                {
                    Debug.Log($"Successfully changed role {player_id}");
                }, error => {
                    Debug.LogError("Something went wrong");
                });
        }

player_id => master player ID

When I change

var entityKey = EntityKeyMaker(player_id, "master_player_account");
to
var entityKey = EntityKeyMaker(player_title_id, "title_player_account");

It works.

Is there any reason that it doesn't work for master player ID