IBooks Author strips tab stops from Table of Contents

Question

Tab stops that are generated from section names are stripped from published iBooks Author files.   When I click on Table of Contents in iBooks Author, I can see it exactly like it should be.  Please see the screenshot that I have uploaded tabs.jpg. 
Please note the Tab stops of the inspector that are in the screenshot.  It shows clearly that I have made a number of tab stops and how it should be displayed. However, please download the following file to see how the tab stops are stripped from the .ibooks file that is created when I publish it:
http://ishqdesign.com/tabs/
I am in immediate need of a solution for a large book that I am in the process of publishing.  Please advise.
Thanks,
J

Answer 1

The iBA Help has info on: table of contents
Which includes:
Each book comes with a table of contents that is updated automatically. You can view the table of contents at any time by selecting Table of Contents in the sidebar. The table of contents includes a default set of items, but you can change which items appear. A table of contents can include:
Chapter and section titles: All chapter and section titles are included in the table of contents by default. If you remove a section from the table of contents, all other sections that use the same layout are removed as well.
Text that uses specified paragraph styles: By default, the table of contents includes all paragraphs in the book that use the Heading 1 and Heading 2 style, but you can include whichever styles you like. Paragraph styles appear in the table of contents only in portrait orientation. See Format text using styles.
The way the table of contents looks depends on the current page orientation. In landscape orientation (shown below), each chapter has its own contents page, with navigation buttons at the bottom. In portrait orientation, the entire book’s table of contents is visible as an expandable list.
Add or remove items in the table of contents
If the Document inspector isn’t open, click Inspector in the toolbar and click the Document Inspector button.
Click the TOC button.
Do either or both of the following:
To add an item: Click the Add pop-up menu , choose Add Paragraph Style, and choose an option from the submenu.
To remove an item: Select the item you want to remove and click the Delete button .