Why are files not included in my TOC in my PDF?

[LarryCarey]

I am trying to troubleshoot some page layout issues in a project targeted for PDF output.
I have been advised to create a new TOC, adding one file at a time (building a PDF after adding each file to the TOC) in order to figure out where my page layout issues might be hiding.
So, I created a copy of the TOC, and in the new (copied TOC) I have removed all but the first three files.
I have set the new (copied) TOC as the Primary TOC.
But, when I build the PDF, it creates a PDF that has all of the files that were in the original TOC, even though they are not included in the active (copied) TOC.

How do I create a PDF that only includes the files that I have listed in my TOC? I've always assumed that the TOC controls which files will be included in the output?

[NorthEast]

Apologies if this is an obvious question, but have you edited your PDF target to link to your new TOC?
It sounds like the target is still linked to the original TOC.