Crash in AUv2 Wrapper using VST3 SDK v3.7.7 about vst3sdk HOT 3 CLOSED

class AGainEditor : public VSTGUIEditor, public IControlListener
{
        enum
        {
            kWidth = 400,
            kHeight = 400,
            kButton1 = 'btn1',
            kButton2 = 'btn2'
        };
            
        public:
            AGainEditor (void* controller) :
                VSTGUIEditor(controller)
            {
                ViewRect vr(0, 0, kWidth, kHeight);
                setRect(vr);
            }
            
            virtual ~AGainEditor () {}
            
            virtual bool PLUGIN_API open (void* parent, const VSTGUI::PlatformType& platformType) SMTG_OVERRIDE
            {
                auto r = getRect();
                CRect size(r.left, r.top, r.right, r.bottom);
                
                auto oldFrame = frame;
                frame = new CFrame(size, this);
                if(oldFrame)
                    oldFrame->forget();
                
                if(frame->open(parent, platformType))
                {
                    frame->setBackgroundColor(kBlueCColor);
                    
                    CRect buttonSize(0, 0, 120, 20);
                    
                    buttonSize.centerInside(size);
                    buttonSize.offset(CPoint(-buttonSize.getWidth() / 2 - 2, 0));
                    auto button1 = new CTextButton(buttonSize, this, kButton1, "zoomFactor = 1", CTextButton::Style::kKickStyle);
                    frame->addView(button1);
                    
                    buttonSize.centerInside(size);
                    buttonSize.offset(CPoint(+buttonSize.getWidth() / 2 + 2, 0));
                    auto button2 = new CTextButton(buttonSize, this, kButton2, "zoomFactor = 2");
                    frame->addView(button2);
                    
                    return true;
                }
                
                return false;
            }
            
            virtual void PLUGIN_API close () SMTG_OVERRIDE
            {
                if(frame)
                {
                    frame->close();
                    frame = nullptr;
                }
            }
            
            virtual void valueChanged (CControl* pControl) SMTG_OVERRIDE
            {
                int tag = pControl->getTag();
                float value = pControl->getValue();
                if(value > 0.5f)
                {
                    if(tag == kButton1)
                    {
                        frame->setZoom(1.0);
                    }
                    
                    else if(tag == kButton2)
                    {
                        frame->setZoom(2.0);
                    }
                }
            }
            
            bool beforeSizeChange(const CRect& newSize, const CRect& oldSize) SMTG_OVERRIDE
            {
                static bool resizeGuard = false;
                bool result = resizeGuard;

                if(plugFrame && !result)
                {
                    resizeGuard = true;
                    ViewRect vr;
                    vr.right = int32(newSize.getWidth());
                    vr.bottom = int32(newSize.getHeight());
                    result = (plugFrame->resizeView(this, &vr) == kResultTrue);
                    resizeGuard = false;
                }

                return result;
            }
};