Management API and List Users

I am trying to list all my users into a datatable in my Angular 4 app. I get the list of users but the ones who created their users themselves via login widget signup and the ones I create from the management API are completely different and when I try to use the JSON response to list them I get shown only the ones that were created using the sign up and not the other ones, even tho I can see them on the JSON object, I believe it has something to do with the object nature as they are different.
Please any advice would be greatly appreciated.

Can you update your question to provide an example of a user profile that displays, and one that doesn’t? One thing to note is that the user_profile can differ based on which Identity provider the user signed up using. E.g Facebook users will have additional attributes to a normal database connection user. I suggest looking at the user_profile structure to make sure you are attempting to display data that is available:

    {
        "email_verified": true,
        "email": "xxx@xxx.com",
        "updated_at": "2017-07-17T20:19:59.341Z",
        "name": "xxx@xxx.com",
        "picture": "https://s.gravatar.com/avatar/6c5d28268a39dc9dd5d1459dde63c30b?s=480&r=pg&d=https%3A%2F%2Fcdn.auth0.com%2Favatars%2Fvb.png",
        "user_id": "auth0|59417567a5xxx26b1xxx8065",
        "nickname": "xxx",
        "identities": 
            {
                "user_id": "59417567a5xxx26b1xxx8065",
                "provider": "auth0",
                "connection": "Username-Password-Authentication",
                "isSocial": false
            }
        ],
        "created_at": "2017-06-14T17:42:00.273Z",
        "last_ip": "200.37.162.55",
        "last_login": "2017-07-17T20:19:59.341Z",
        "logins_count": 222,
        "app_metadata": {
            "roles": 
                "Admin",
                "Affiliate",
                "Client"
            ]
        }
    },
    {
        "email_verified": false,
        "email": "yyy@yyy.com",
        "updated_at": "2017-07-17T17:53:59.796Z",
        "name": "yyy@yyy.com",
        "picture": "https://s.gravatar.com/avatar/6e76169e601ce8ba0f9790b2efce4e99?s=480&r=pg&d=https%3A%2F%2Fcdn.auth0.com%2Favatars%2Fav.png",
        "user_id": "auth0|595cfe158yyye5530yyyd9bc",
        "nickname": "yyy",
        "identities": 
            {
                "user_id": "595cfe158yyye5530yyyd9bc",
                "provider": "auth0",
                "connection": "Username-Password-Authentication",
                "isSocial": false
            }
        ],
        "created_at": "2017-07-05T14:56:21.726Z",
        "last_ip": "181.65.186.57",
        "last_login": "2017-07-17T17:53:59.796Z",
        "logins_count": 7,
        "app_metadata": {
            "roles": 
                "Admin",
                "Affiliate",
                "Client"
            ]
        }
    },
    {
        "email_verified": true,
        "email": "zzz@zzz.com",
        "updated_at": "2017-07-17T17:53:55.239Z",
        "name": "zzz@zzz.com",
        "picture": "https://s.gravatar.com/avatar/505660069221ccfa73386b8e2350ee9f?s=480&r=pg&d=https%3A%2F%2Fcdn.auth0.com%2Favatars%2Fgb.png",
        "user_id": "auth0|595e5c8bzzzae553zzz0666b",
        "nickname": "zzz",
        "identities": 
            {
                "user_id": "595e5c8bzzzae553zzz0666b",
                "provider": "auth0",
                "connection": "Username-Password-Authentication",
                "isSocial": false
            }
        ],
        "created_at": "2017-07-06T15:51:39.698Z",
        "last_login": "2017-07-16T15:31:50.364Z",
        "logins_count": 7,
        "app_metadata": {
            "roles": 
                "Client",
                "Affiliate"
            ]
        }
    },
    {
        "email": "john.doe@gmail.com",
        "email_verified": false,
        "user_id": "auth0|596d1def790837489f4c7d48",
        "picture": "https://s.gravatar.com/avatar/e13743a7f1db7f4246badd6fd6ff54ff?s=480&r=pg&d=https%3A%2F%2Fcdn.auth0.com%2Favatars%2Fjo.png",
        "identities": 
            {
                "user_id": "596d1def790837489f4c7d48",
                "provider": "auth0",
                "connection": "Username-Password-Authentication",
                "isSocial": false
            }
        ],
        "updated_at": "2017-07-17T20:28:31.662Z",
        "created_at": "2017-07-17T20:28:31.662Z"
    },
    {
        "email": "johnny@gmail.com",
        "nickname": "johnny",
        "email_verified": false,
        "user_id": "auth0|596d20155fd3c54c71f919a5",
        "picture": "https://s.gravatar.com/avatar/136c70acb946f0f37b12bb6fbfe56f2c?s=480&r=pg&d=https%3A%2F%2Fcdn.auth0.com%2Favatars%2Fjo.png",
        "identities": 
            {
                "user_id": "596d20155fd3c54c71f919a5",
                "provider": "auth0",
                "connection": "Username-Password-Authentication",
                "isSocial": false
            }
        ],
        "updated_at": "2017-07-17T20:37:41.842Z",
        "created_at": "2017-07-17T20:37:41.842Z"
    },
    {
        "email": "efendashe@gmail.com",
        "email_verified": true,
        "user_id": "auth0|596d249b6c6fa53f6c21d8cc",
        "picture": "https://s.gravatar.com/avatar/0db4948477d5c16656e1eeb003fb047f?s=480&r=pg&d=https%3A%2F%2Fcdn.auth0.com%2Favatars%2Fef.png",
        "identities": 
            {
                "user_id": "596d249b6c6fa53f6c21d8cc",
                "provider": "auth0",
                "connection": "Username-Password-Authentication",
                "isSocial": false
            }
        ],
        "updated_at": "2017-07-17T20:57:19.388Z",
        "created_at": "2017-07-17T20:56:59.020Z"
    }
]

If you check the last 3 unmodified test users, they do not have the same user profile structure and they are still Auth0 because I have disabled social logins in my application. So that is why I am wondering why Angular tables have such a hard time showing them as users, or why is the structure in data is so different.

Can you clarify what differences in structure you see? The only ones I spot are that some do not have app_metadata, which is expected if you haven’t set any for that user. The user profiles that are being returned are what are expected, as outlined in the documentation.