diff --git a/Unreal/Plugins/PS_Editor/Source/PS_Editor/UI/Widgets/PS_Editor_MainWidget.cpp b/Unreal/Plugins/PS_Editor/Source/PS_Editor/UI/Widgets/PS_Editor_MainWidget.cpp
index 52724cc..201df7c 100644
--- a/Unreal/Plugins/PS_Editor/Source/PS_Editor/UI/Widgets/PS_Editor_MainWidget.cpp
+++ b/Unreal/Plugins/PS_Editor/Source/PS_Editor/UI/Widgets/PS_Editor_MainWidget.cpp
@@ -589,9 +589,10 @@ TSharedRef<SWidget> UPS_Editor_MainWidget::BuildSceneButtons()
 
 						// Store scene name in GameInstance subsystem (survives OpenLevel)
 						FString BaseLevel = EditorPC->CurrentBaseLevel;
+						UE_LOG(LogTemp, Warning, TEXT("PS_Editor Play: BaseLevel='%s'"), *BaseLevel);
 						if (BaseLevel.IsEmpty())
 						{
-							UE_LOG(LogTemp, Warning, TEXT("PS_Editor: No BaseLevel set, cannot Play. CurrentBaseLevel is empty."));
+							UE_LOG(LogTemp, Warning, TEXT("PS_Editor: No BaseLevel set, cannot Play."));
 							return FReply::Handled();
 						}
 
@@ -611,11 +612,16 @@ TSharedRef<SWidget> UPS_Editor_MainWidget::BuildSceneButtons()
 							}
 						}
 
-						// Reset input mode before transition so the target GameMode starts clean
+						// Unload sublevel before OpenLevel to avoid name conflict
+						EditorPC->LoadBaseLevelAsSublevel(TEXT("None"));
+
+						// Reset input mode before transition
 						EditorPC->bShowMouseCursor = false;
 						EditorPC->SetInputMode(FInputModeGameOnly());
 
-						UGameplayStatics::OpenLevel(EditorPC, FName(*BaseLevel), true, TEXT(""));
+						// Use full path to avoid confusion with sublevel instances
+						FString MapPath = FString::Printf(TEXT("/Game/%s"), *BaseLevel);
+						UGameplayStatics::OpenLevel(EditorPC, FName(*MapPath), true, TEXT(""));
 						return FReply::Handled();
 					})
 					[