Calling this same function in unity editor works but not on android mobile phones
public static void AddPlayerTag(AddPlayerTagRequest request, Action<AddPlayerTagResult> resultCallback, Action<PlayFabError> errorCallback, object customData = null, Dictionary<string, string> extraHeaders = null)
{
var context = (request == null ? null : request.AuthenticationContext) ?? PlayFabSettings.staticPlayer;
var callSettings = PlayFabSettings.staticSettings;
//if (string.IsNullOrEmpty(callSettings.DeveloperSecretKey)) { throw new PlayFabException(PlayFabExceptionCode.DeveloperKeyNotSet, "Must set DeveloperSecretKey in settings to call this method"); }
PlayFabHttp.MakeApiCall("/Server/AddPlayerTag", request, AuthType.DevSecretKey, resultCallback, errorCallback, customData, extraHeaders, context, callSettings);
}