Unhandled vst callback: 42?

I’ve noted in the console for the Windows version of Plugin-host, that we frequently are getting the message “unhandled vst callback: 42”.

What’s VST callback 42? Should we be concerned?

VST Callback 42

You’ll have to debug juce’s VSTPluginInstance class to know if it’s something to be concerned about. You can check to see if the switch to audioMasterUpdateDisplay is occurring (or not) in the VSTPluginInstance::handleCallback method - it should be handled.