Melodyne quirk ?

[mark skinner]

 Hello to all ,  I'm up to cleaning up and using Melodyne essentials as a region effect on some vocal tracks.  After reviewing , I'm going back in and doing more work on individual phrases and words.  I'm finding that the problem spots aren't retaining the pitch corrections I had already put in.  I have never really noticed this before  , and  maybe I'm just getting real picky on this one . I'm rendering as I go.  Latest CbB build.  Anyone ever noticed this or have a suggestion or solution ..  Not a big problem , I actually like editing , but need to trust my efforts ..  mark