Just tried using only Firefox and uBO, that link and the main page load correctly first time and on refresh. Checked with default filters only and default plus annoyances and both were fine. Do you have any other ad blocker / content filter running at the same time?
For someone interested in trying it out, it happened to me with the following article: https://edition.cnn.com/travel/japan-plane-american-passenger-bite-intl-hnk/index.html
It works at first, but if i refresh the page, it gets redirected to the block pave
Just tried using only Firefox and uBO, that link and the main page load correctly first time and on refresh. Checked with default filters only and default plus annoyances and both were fine. Do you have any other ad blocker / content filter running at the same time?