@richb-hanover,
I actually have seen this before. I believe we have an issue for this (or sites like it) on our web compatiblity board – will try to find the issue for it shortly.
The sum of it is: they’re kind of being jerks. Essentially, the site is running a script that’s checking to see if you have a particular [cookie, probably] was set when you land on the homepage. If not, when you go to view an article – you’re only allowed to read up to some predefined point, after which the site is “unmounted”.
To see a bit of this in action - visit an article on the site, open the Shields panel and set Scripts control to Block all scripts (also note all the ads/trackers hidden inside the scripts, scary!). Notice that the site will now load, but only to the “allowed” place on the page.
I haven’t seen a site with this issue in a while so I think I assumed the issue was addressed. I’ve reached out to a few team members for clarification. The rather unfortunate workaround is to drop Shields or allow ads/trackers for the site. Hope to have more information for you soon.