I'm calling GetLeaderboardAroundPlayer for user who doesn't have the corresponding statistic in leaderboard, but his position equals to 1 instead of 0, as stated by this:
Note: When calling 'GetLeaderboardAround...' APIs, the position of the user defaults to 0 when the user does not have the corresponding statistic.
This is the content of a leaderboard:
Unity output after calling GetLeaderboardAroundPlayer:
GetLeaderboardAroundPlayer - position: 1, stat. 0, name: guest654032