301 Redirects to old url after destination url was updated in plugin settings

Hi there, we had some redirects that lead from pdc.org/wildfires to https://www.pdc.org/wp-content/uploads/online-courses/wildfire/index.html#/ but we previously had it point to https://www.pdc.org/wp-content/uploads/online-courses/wildfire/wildfires.html#/. The issue is even after clearing the plugin cache, our site cache, and flushing Cloudfront we still sometimes get directed to the old url instead of the updated one.

For time sensitive changes to where a 301 redirect should lead, what can we do to ensure all visitors are in fact directed to the updated url?

We’re running latest version of the plugin and WP with PHP 8+. Thank you.

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