Commented out Hardcoding setting view mode to fullscreen.

This was actually a way bigger pain than it should have been because no one on the internet tells you that you NEED to include Version=5 with your GameUserSettings otherwise they get nuked.

Config/DefaultEngine.ini

@@ -220,7 +220,6 @@ MinSampleRate=8000.000000
 CompressionQualityModifier=1.000000
 AutoStreamingThreshold=0.000000
 SoundCueCookQualityIndex=-1
-DefaultWindowMode=Fullscreen
 
 [/Script/WorldPartitionEditor.WorldPartitionEditorSettings]
 CommandletClass=Class'/Script/UnrealEd.WorldPartitionConvertCommandlet'

Config/DefaultGameUserSettings.ini

@@ -0,0 +1,8 @@
+[/Script/Engine.GameUserSettings]
+Version=5
+FullscreenMode=2
+LastConfirmedFullscreenMode=2
+ResolutionSizeX=1280
+ResolutionSizeY=720
+LastUserConfirmedResolutionSizeX=1280
+LastUserConfirmedResolutionSizeY=720

Source/LuckyWorldV2/Private/Core/LuckyRobotsGameInstance.cpp

@@ -21,9 +21,6 @@ void ULuckyRobotsGameInstance::Init()
 {
 	Super::Init();
 
-	// Set fullscreen mode on startup
-	DoResolutionChange(true);
-
 	auto UISubsystem = GetSubsystem<UUISubsystem>();
 	if (UISubsystem)
 	{

Source/LuckyWorldV2/Private/Menus/MainScreenUserWidget.cpp

@@ -20,7 +20,7 @@ void UMainScreenUserWidget::NativeConstruct()
 	if (GameInstance)
 	{
 		GameInstance->bIsFirstOpenGame = false;
-		GameInstance->DoResolutionChange(bIsFullScreen);
+		//GameInstance->DoResolutionChange(bIsFullScreen);
 
 		GameInstance->OnMessageDispatched.AddDynamic(this, &UMainScreenUserWidget::OnMessageDispatchedHandler);
 	}

Source/LuckyWorldV2/Public/SharedDef.h

@@ -695,23 +695,4 @@ struct FParsedData
 
 	UPROPERTY(BlueprintReadWrite, Category = "Parsed Data")
 	FString Quality;
-};
-
-USTRUCT(BlueprintType)
-struct FSaveGameSettings
-{
-	GENERATED_BODY()
-
-public:
-	UPROPERTY(EditAnywhere, BlueprintReadWrite)
-	float f_ambient;
-
-	UPROPERTY(EditAnywhere, BlueprintReadWrite)
-	float f_effect;
-
-	UPROPERTY(EditAnywhere, BlueprintReadWrite)
-	float f_ui;
-
-	UPROPERTY(EditAnywhere, BlueprintReadWrite)
-	float f_music;
 };