Deployed webhelp toc has duplicate pages
RH11, Windows 7 Enterprise
Problem: Deployed webhelp toc has duplicate and deleted pages.
Background: Our development team pushes Help from our Atlassian bitbucket server to QA test, user test acceptance (uat), and production release, to add it to our product. Same Help file and product for over a year. Found after production. I see it was also in uat, but we missed it. We're in the next QA test cycle now, and the issue isn't seen, but I need to make sure it's fixed.
Image: Contents pages under Students Module were duplicated under Groups Module, and the Groups Module pages were gone.

Where issue was/is not seen:
- Does not appear in today's QA test deployment.
- Did not appear in a previous standalone webhelp published to an internal server.
- Did not appear within my project. Files are fine, output is good.
Here's some things that occur to me, but I don't know how to check them:
- Some developers are new. Is there an error they could have made in the deployment?
- If bitbucket went offline when webhelp files were being picked up, could a file have been corrupted, such as the whtoc.js file?
Thank you for your thoughts!
