with the last changes to handleMouseEvent the vst doesn’t build :
/juce/modules/juce_audio_plugin_client/utility/juce_FakeMouseMoveGenerator.h:54:113: Too few arguments to function call, expected at least 6, have 5
(MouseInputSource::invalidOrientation is missing)
I also had an error in my code because MouseInputSource::isMouse() has been removed. perhaps you could have let it there as
bool MouseInputSource::isMouse() const noexcept { return ! isTouch(); }