Jetpack badly formed URL raising hidden 404 errors on page load

Recently I have been seeing 404 errors for a script load by Jetpack for a stats script. Whenever a page is loaded on the site the page loads fine but the browser console (and Web server error log) reports
Loading failed for the <script> with source “https://womenshistorynetwork.org/wp-content/plugins/jetpack/https://stats.wp.com/s-202028.js”.

I am seeing similar messages on other sites I host and manage with JetPack installed (eg https://socialhistory.org.uk, https://bavs.ac.uk).

Pages load fine but these constant 404’s are tripping the iThemes security monitor and getting users banned for juat browsing the website! I have backed off the security monitoring to stop that for now but is there any way to fix this. or are you able to fix this on an update? (Jetpack 8.6.1 is installed on all sites)

The page I need help with: [log in to see the link]