2 issues when using the "Copy Tree" function

When I copy an assembly using "Copy Tree" I am having 2 issues:

1. Sometimes all the files in the assembly get selected and sometimes they don't.

2. The new assembly is maintaining a pdf that is referenced by the drawing even when during the process it shows that it was excluded.  This is problematic because of possible ISO implications.

Any help would be greatly appreciated.

Thank you!

During the Copy Tree process

The new files Contains tab

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