UE-5.6.0 cannot correctly serialize and package Animblueprints when packaging a build

If someone finished official tutorial code-a-firstperson-adventure-game-in-unreal-engine and tried to package a build, when running the packaged build, properly hit this error:

After some investigate , i found UE-5.6.0 can’t serialize and package Animblueprints correctly.
the AnimBlueprint object declared in CPP header file,

public:
	// Sets default values for this character's properties
	AMyCharacter();

    UPROPERTY(EditAnywhere, Category="Animation")
    TObjectPtr<UAnimBlueprint>MyTestAnim;

and then instanced on blueprint , even if it has been assigned a ABP_AnimBlueprint in editor, it still get nullptr in c++ ( it runs well in PIE ) , the error log shows:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000030

if you try to use this AnimBlueprint,
It just can’t package UAnimBlueprint properly (so far i found), leading to project runs well in PIE but crashed in packaged build.