Tech Doc - Error when Adding Table of Contents

So, I have simply copied the 'Standard' document type and therefore have 3 document types now -- Standard, MPP-Standard and MyDocType (copy). 

I created a new tech doc, with the Standard doc type, with about 5 or 6 chapters and sections each with their titles.  I added the TOC-Section and then the TOC and it generates with no issues based on the chapter/section titles I have created.

I then remove the TOC, remove the TOC-Section and then save the same tech doc with the copied document type (MyDocType).  I add the TOC-Section and then the TOC and receive the following errors.  One is what you see without debugging in the method and the 2nd is debugging the content generator for TOC.

There doesn't seem to be any rhyme or reason why it doesn't get the same "GenerationParameters" that it requires.

Any one seen this issue?