Dedicated server crash "GameModeBase.HandleStartingNewPlayer"

Development Platform & Builds Debugging, Optimization, & Profiling
,
4

Hello,

I finally found “the problem” by removing codes function with dichotomy
methodology.

Below the code, I hope it’ll help:

    FString Json = gameSession.GetMatchmakerData();
	TSharedPtr<FJsonObject> JsonObject;
	TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Json);
	FPlayerData PlayerData;

	if (FJsonSerializer::Deserialize(Reader, JsonObject) && JsonObject->HasField("teams")) {
		const TArray<TSharedPtr<FJsonValue>> Arr_Teams = JsonObject->GetArrayField("teams");

		for (int i = 0; i < Arr_Teams.Num(); i++) {
			const TSharedPtr<FJsonObject> TeamJsonObject = Arr_Teams[i]->AsObject();
			const TArray<TSharedPtr<FJsonValue>> Arr_Players = TeamJsonObject->GetArrayField("players");
			for (int j = 0; j < Arr_Players.Num(); j++) {
				this->Arr_PlayerDatas.Add(FPlayerData(*Arr_Players[j]->AsObject().Get())); //this line was the problem
			}
		}
	}

I replaced the problematic line by:

PlayerData = FPlayerData();
PlayerData.InitJson(*Arr_Players[j]->AsObject().Get());
this->Arr_PlayerDatas.Add(PlayerData);

For info FPlayerData is USTRUCT. Refactoring the custom construct to a function (InitJson) did the trick.

Have a good week-end.