Anderton
I really need to do a video so people can see how easy it is...
Yes please do your video, Ive, watched some of Eli Krantzberg`s lessons on Sonar/Audio Snap on Groove 3, he always makes everything look so easy, till you try and do it yourself. LOL.
Also noting my recent post on "Audio Snap issues" crashing Sonar, possibly due to my own video driver issues, (albeit, I haven't found any otherwise yet).
Otherwise to OP, Ive had these issues at times, with Melodyne, but not always, which may make it more frustrating, also with pitch correction, and had that weird phasing sound on vocals, even slightly corrected, unfortunately I dont have the answer, I just didn't do correction and lived with it, or re-recorded tracks, which may not always be an option. But you may also consider contacting Celemony to point out issues, Ive found they're usually pretty good getting back to you, but may take a weekday or 2 to reply, (noting they're German time zone) they also have good help tutorials.
Cheers
John