Hasta La Motion!

Hi , this is narrator from India.
Ryt now am working in mocha pro for my project which is entirely relied upon Mocha software for roto as per the requirement of the client.

Am facing a problem when exporting the shapes of mocha to After effects and to even Nuke . The problem is that some of the vertices or the control points of the shapes are going outside the project window in After effects and Nuke .

For this again we have to come back to Mocha and delete those points
and again we r recreating the shape.

Is there any solution for this error . We even Checked the settings of the clip in all these softwares which were the same.
jus explain to me what is actually happening when exporting a shape to other softwares

Thank u guys and jus see if u can help me with ur knowledge