How can I get user information in the leaderboard list?

I already have PlayerProfileViewConstraints appended to the request statement, but when I return it does not contain the user's information.

ClientModels::GetLeaderboardRequest req;

req.StatisticName = leaderboardKey;

req.StartPosition = startPos;

req.MaxResultsCount = maxResult;

PlayerProfileViewConstraints* profileinfo = newPlayerProfileViewConstraints();

profileinfo->ShowAvatarUrl = true;

profileinfo->ShowDisplayName = true;

profileinfo->ShowLocations = true;

// profileinfo->ShowStatistics = true;

req.ProfileConstraints = profileinfo;

Please tell me why or where the error is, the information of the user cannot be returned with the Leaderboard list.

Thank!