Tried a properly formatted sitemap index file, listing two sitemaps (general RW one and TCNS one) but unfortunately RapidSearch Live didn’t like the index file and found nothing.
When using the individual sitemap files Rapidsearch Live worked as expected with the standard sitemap but not the TCMS one. It looks like the TCMS one doesn’t quite follow the sitemap standard, so would be invisible to Rapid Search Live.
@manofdogz have you tried 1LD’s search stack with TCMS?