I am using RoboHelp 2015 (18.104.22.1684) on Windows 10.
I am generating a merged Help project.
I deleted the index keyword and then the topic using the Project Manager pod.
I generated the parent, then the child.
I copied the whxdata, whgdata, and whdata (I know it is overkill) to my test area.
Opened the help.
Accessed the index.
The topic still appears.
WebHelp. I will let you know how things go. It will be a while.
Thank you for your assistance. It took a while.