Why does Molodyne not recognize the volume curves in studio one

After I add Melodyne to a track in Studio One (and tranfer sound), Studio One does not recognize volume curves or when you delete part or all of that track, unless you deactivate or remove Melodyne from the track. I used Melodyne to make corrections on a vocal track, after I was done I tryed to fade in part of the vocals on that track and the vocals would just kick right in, unless I deactivated Melodyne.

I am ruing Melodyne 4 "Melodyne essential 4.2.0.020 (64bit)" on Studio One Professional "Studio One 4.1.1.49941 Win x64"

Thank you,

Daryl