Hello Steinberg team,
I’m wandering, why one of the most used CC as Volume Control - The ModWheel missing from Volume Mode
list?
Probably CC-64 is used as Dynamic / Volume much more than the Velocity. All major libraries like
Orchestral Tool, Spitfire Audio, Vienna Instruments, CineSamples, etc… use the ModWheel as Dynamic controller for all long notes.
Please, take this in mind and add the ModWheel to VariAudio > Extract MIDI > Volume Mode.
Thank you in advance! 
Best regards,
Thurisaz