question

I found a workaround in the meantime of modifying the error causing check (on line 126) to always be truthy like so...

UFUNCTION(BlueprintCallable, Category = "PlayFab | Core")
    void ClientAdminSecurityCheck() const
    {
        checkf(
            DeveloperSecretKey.Len() == 0 || ClientSessionTicket.Len() == 0 || true, // The condition is true/safe if one or the other is length zero
            TEXT("For title security, you cannot set the DeveloperSecretKey on a process which uses a Client Login")
        );
    }

...but something tells me that's not the most correct way forward.

For the sake of not letting this discussion die, I've run into the same problem.

In my case, I have an actor that spawns on the server that sets the DeveloperSecretKey after the game has started, and a separate actor that spawns on clients for logging in and running the client API. The server is dedicated and set to run in a separate process, but I still get this crash on every second run of the game.

The problem is that UPlayFabRuntimeSettings is being cached on both the client and server when they are both started from the Unreal Editor. To workaround this for now, I have to clear the key on the Actor's BeginDestroy. There should be a easier way to test a client/server setup like this, as it's a pretty common scenario.

For those interested in my code:

void APlayFabServer::Init(const FString& SecretKey)
{
	UPlayFabRuntimeSettings* rSettings = GetMutableDefault<UPlayFabRuntimeSettings>();
	rSettings->DeveloperSecretKey = SecretKey;


	serverAPI = IPlayFabModuleInterface::Get().GetServerAPI();
}



void APlayFabServer::BeginDestroy()
{
	Super::BeginDestroy();
	UPlayFabRuntimeSettings* rSettings = GetMutableDefault<UPlayFabRuntimeSettings>();
	rSettings->DeveloperSecretKey = "";
}

For the sake of not letting this discussion die, I've run into the same problem.

In my case, I have an actor that spawns on the server that sets the DeveloperSecretKey after the game has started, and a separate actor that spawns on clients for logging in and running the client API. The server is dedicated and set to run in a separate process, but somehow I'm getting this crash on every second run of the game.

The problem is that UPlayFabRuntimeSettings is being cached on both the client and server when started from the Unreal Editor. As a workaround for now, I just clear UPlayFabRuntimeSettings.DeveloperSecretKey on the Actor's BeginDestroy, but I think there should be a better way to do this, as it seems like a common scenario.

For those interested, here's my code.

void APlayFabServer::Init(const FString& SecretKey)
{
	UPlayFabRuntimeSettings* rSettings = GetMutableDefault<UPlayFabRuntimeSettings>();
	rSettings->DeveloperSecretKey = SecretKey;


	serverAPI = IPlayFabModuleInterface::Get().GetServerAPI();
}



void APlayFabServer::BeginDestroy()
{
	Super::BeginDestroy();
	UPlayFabRuntimeSettings* rSettings = GetMutableDefault<UPlayFabRuntimeSettings>();
	rSettings->DeveloperSecretKey = "";


}