Fix retarget display mesh initialization

Source/PHY/Private/Animation/PHYCharacterMeshBridgeComponent.cpp

@@ -18,6 +18,14 @@ UPHYCharacterMeshBridgeComponent::UPHYCharacterMeshBridgeComponent(const FObject
 	PrimaryComponentTick.bCanEverTick = false;
 }
 
+void UPHYCharacterMeshBridgeComponent::BeginPlay()
+{
+	Super::BeginPlay();
+
+	// 构造期或 PlayerState 职业同步可能早于显示 Mesh 注册，运行时再确认一次。
+	RefreshFollowPoseMode();
+}
+
 void UPHYCharacterMeshBridgeComponent::InitializeMeshBridge(ACharacter* Character, USkeletalMeshComponent* InDisplayMeshComponent)
 {
 	SourceMeshComponent = Character ? Character->GetMesh() : nullptr;
@@ -185,6 +193,16 @@ void UPHYCharacterMeshBridgeComponent::ConfigureRetargetFollowPose()
 		return;
 	}
 
+	if (!DisplayMeshComponent->GetSkeletalMeshAsset())
+	{
+		return;
+	}
+
+	if (!SourceMeshComponent->IsRegistered() || !DisplayMeshComponent->IsRegistered())
+	{
+		return;
+	}
+
 	TSubclassOf<UAnimInstance> RetargetAnimClass = ResolveRetargetDisplayAnimClass();
 	if (!RetargetAnimClass)
 	{
@@ -204,6 +222,8 @@ void UPHYCharacterMeshBridgeComponent::ConfigureRetargetFollowPose()
 		DisplayMeshComponent->SetAnimInstanceClass(RetargetAnimClass);
 	}
 
+	DisplayMeshComponent->InitAnim(true);
+
 	if (!CurrentRetargeter.IsValid())
 	{
 		UE_LOG(LogTemp, Warning, TEXT("PHYCharacterMeshBridgeComponent: DisplayMesh %s needs an IK Retargeter for cross-skeleton follow pose."), *GetNameSafe(DisplayMeshComponent));
@@ -213,7 +233,10 @@ void UPHYCharacterMeshBridgeComponent::ConfigureRetargetFollowPose()
 	UPHYRetargetPoseAnimInstance* RetargetAnimInstance = Cast<UPHYRetargetPoseAnimInstance>(DisplayMeshComponent->GetAnimInstance());
 	if (!RetargetAnimInstance)
 	{
-		UE_LOG(LogTemp, Warning, TEXT("PHYCharacterMeshBridgeComponent: DisplayMesh %s did not create a UPHYRetargetPoseAnimInstance."), *GetNameSafe(DisplayMeshComponent));
+		UE_LOG(LogTemp, Warning, TEXT("PHYCharacterMeshBridgeComponent: DisplayMesh %s did not create a UPHYRetargetPoseAnimInstance. AnimClass=%s AnimInstance=%s"),
+			*GetNameSafe(DisplayMeshComponent),
+			*GetNameSafe(DisplayMeshComponent->GetAnimClass()),
+			*GetNameSafe(DisplayMeshComponent->GetAnimInstance()));
 		return;
 	}
 

Source/PHY/Public/Animation/PHYCharacterMeshBridgeComponent.h

@@ -72,6 +72,9 @@ public:
 	FSoftObjectPath GetCurrentRetargeter() const { return CurrentRetargeter; }
 
 protected:
+	/** @brief 组件进入运行时后重新确认 Follow Pose 模式，覆盖构造期组件未注册的情况。 */
+	virtual void BeginPlay() override;
+
 	/** @brief 应用配置中的源运动 Mesh 和 AnimClass 默认值。 */
 	void ApplySourceDefaults();