Building a standalone includes previous .mxf

Hi everyone,
as stated at the topic title, when a build a standalone from a patch called e.g. "AppA", I also find inside the package contents the following from a specific previous patch e.g. "AppPrev":

- another .mxf from AppPrev standalone build. It is always the same one... it does not replace the one that i build (AppA), but the bundle contains two .mxf files, two .rsrc and two folders inside the "MacOS" folder in the bundle Contents
- files from "AppPrev" codesinging. When codesigned again it says "replacing invalid signature"
- a couple of folders with audio samples and pdfs used in "AppPrev".

The folders with the pdf and samples where put inside the AppPrev standalone by hand , not with "include folder/file" from the max build window.

This happens even if build the "AppPrev" again (not the duplicate files).
I delete the extra files and folders and it seems to be OK... But why does this happen? How can i stop it without uninstalling and re-installing max ?

I use Max 6.1.2 on Mac OS X, Snow Leopard.

Thank you in advance
Nikolas