i use cleanplate but get a hard edge,what’s the problem?thank you!
Either the track is not lining up properly, or your roto is too tight on the object you are trying to remove. Can you send a picture of the problem? That is worth 1000 words. 
Cheers,
Mary
haha,thank you Mary.i see.may be i must select Interpolate and Use Cleanplates Exclusively.i got.yes, my roto is too tight.it’s cost me 3 days.haha.thanks agin.
Glad you’re all set though!