Improved: Updated to Visual Studio 2019 and Qt 5.15.2. Running Equalizer APO requires Universal CRT now, which means that Windows versions before 10 may need additional Windows updates or the Visual C++ Redistributable for Visual Studio 2015 - 2019 needs to be installed (installer provides assistance).

helpers/VSTPluginInstance.h

@@ -68,11 +68,11 @@ public:
 
 private:
 	std::shared_ptr<VSTPluginLibrary> library;
-	AEffect* effect;
+	AEffect* effect = NULL;
 	std::function<void()> automateFunc;
 	std::function<void(int, int)> sizeWindowFunc;
 	float sampleRate = 0.0f;
-	int usedChannelCount;
+	int usedChannelCount = -1;
 	int processLevel = 0;
 	int language = 1;
 };