Robohelp 2020 - Stuck At Indexing references

[ChipM]

So I have read through replies here and tried some things (mostly new small TOC) to no avail. I am attempting to generate Microsoft HTML Help and it sits at Indexing references for 30+ minutes. I am at a loss and of course under a deadline to get this Help system compiled for a major release. I am exporting to the following Output Path...C:\_Help_Output.

FYI...I have also attempted to output to Responsive HTML5 and it too gets stuck but when I finally give up and shutdown Robohelp the HTML5 Help appears to be generated and navigable.

FYI #2...I had the same problem in 2019.14 and hoped moving to 2020 might fix it by some miracle but alas...

[ChipM]

Thanks so much for all your help so far. I'll give this a try and see what I come up with.