Thanks for the link. Tried it, but unfortunately when I ran it (and deleted the CPD file, as instructed), all the HTML pages were removed from the project view. (Good thing for backups.)
That's unexpected. The script recreates the RH *.fpj files to add missing topics to your project. Not delete them. I'm sorry for the inconvenience. Good thing you made a backup.
Would it be possible for you to share this project with me? I would like to debug the script with your project to see what is going on. You can contact me at contact [at] wvanweelden [dot] eu.
I've contacted you via email. Thank you for your assistance. Truly appreciated.