AIS_Animation is acting weird.

Hi, I am using AIS_Animation to make an animation, but I got a weird result. I am new to opencascade, I am not sure if there is something wrong with my code. Here is my code: 

    TopoDS_Shape part = BRepPrimAPI_MakeBox(50.0, 50.0, 50.0).Shape();
    
    gp_Trsf tsf;
    tsf.SetTranslation(gp_Vec(80.0, 180.0, 0.0));
    TopLoc_Location loc(tsf);
    part.Move(loc);

    Handle(AIS_Shape) aisPart = new AIS_Shape(part);

    Handle(AIS_InteractiveContext) context = occtviewer->Context();
    aisPart->SetHilightAttributes(context->SelectionStyle());
    aisPart->SetDynamicHilightAttributes(context->HighlightStyle()); 
    aisPart->Attributes()-> SetFaceBoundaryDraw(true);
    aisPart->SetDisplayMode(AIS_Shaded);
    context->Display(aisPart, Standard_True);

    gp_Trsf current = aisPart->LocalTransformation();

    gp_Trsf Transform;
    Transform.SetRotation(gp_Ax1(gp_Pnt(80.0, 180.0, 0.0), gp_Dir(0.0, 0.0, 1.0)), M_PI/4);

    Handle(AIS_Animation) animation = new AIS_Animation("myAnimation");
    Handle(AIS_AnimationObject) anime = new AIS_AnimationObject("test", context, aisPart, current, Transform);

    anime->SetStartPts(0);
    anime->SetOwnDuration(2.5);
    animation->Add(anime);

    occtviewer->setObjAnimation(animation);
    occtviewer->startObjAnimating();

And I got the result as:

I just want the box to rotate, but it also moves some distance and then comes back. How should I deal with this?

Thank you !