Index Keywords Missing in Webhelp
Hi! I am trialling RH2022.3.23 for the first time but am experienced with older versions.
I have imported a project from RH9 and am outputting Webhelp. The problem is that Keywords are missing, apparently at random, from the published Index and new Keywords for existing or new Topics do not apear in the Index.
Screengrab shows RH Author view on left and output Index on right. 
Note that of the first 7 Keywords in the Project only 2, "Add/Delete Node" and "Arc", appear in the Webhelp Index.
All Keywords appear in at least 1 Topic. No Cross References are used.
I've looked at ..\My RoboHelp Projects\outputs\...\WebHelp\whxdata\idata1.new.js and can see that the array for the Index is failing to populate all the Keywords.
[index image removed by moderator - kept crashing the webview]
Can anyone point me in the right direction to fix this? TIA
