Plugin wrapper (SOLVED)

It's a tough choice for your first project! Yes, wrapping plugins is possible but there are endless edge-case problems when you do this depending on which hosts and plugins are involved.

Seems like the guy who wrote that knows what he's talking about :)

SOLVED !!!

Removing mousewheel hook creation from JUCE VST and VST3 wrapper code did the trick.

Looks like wrapper window mousewheel hook blocked mousewheel messages from being sent to the wrapped plugin.

Because AAX wrapper does not use mousewheel hooks, wheel always worked in ProTools.