TOC repeat some headings

[martario]

I find a post asking for this problem, but I don't find the solution.

I have a TOC that repeats some headings at the end. It asks if I want to show over set text, but I don't have any over set text in the book. If I say yes, it starts to repeat all the headings from heading nº8 to the last heading. If I say no, it works fine. But I want to understand why this TOC is doing that. I've been working with Indesign more than 10 years, and I've never seen this before.

This is an example:

1. Heading 1 ......1

2. Heading 2 ......4

3. Heading 3 ......5

4. Heading 4 ......8

2. Heading 2 ......4

3. Heading 3 ......5

4. Heading 4 ......8

2. Heading 2 ......4

3. Heading 3 ......5

4. Heading 4 ......8

Thank you in advance. 

[Peter Spier]

Are you using the Update TOC or the Create TOC command? Are you putting the TOC into its own, unthreaded, frame?

[martario]

I am using the update TOC with threaded frames.

[Peter Spier]

Try deleting the current TOC, then create a new one, but put it into its own frame not part of the other text.