Accordion formatting lost after last update

My Accordion plugin was recently updated to version 2.2.29, and now it no longer saves or publishes any format changes, such as carriage returns or bold. However, content changes are saved and published. I can make the change in the Visual tab and it will show up in the Text tab, but when I click Preview Changes, the formatting change is not shown, and when I click Update, the formatting change is not published to the website. The Published On date is old as well - it shows Mar 24, 2021 - so changes are not being published.

Here is the URL that I\'ve tried to update and whose formatting is now corrupted: <a href="http://www.raptorridge.net/professional-experience/">Professional Experience – Jan Denny (raptorridge.net)</a>. Note that I didn\'t make any changes to this URL, which also uses accordions, and it still displays correctly: <a href="http://www.raptorridge.net/customers-and-products/">Customers & Products – Jan Denny (raptorridge.net)</a>

I\'m also running Akismet version 4.1.9, BackWPup version 3.8.0, Bad Behavior version 2.2.24, Brute Force Login version 1.5.3, Coming Soon Page version 6.2.0, Duplicator version 1.4.0, Elementor version 3.1.4, iThemes Security version 7.9.0, Remove Footer Credit version 1.0.5, Remove Page Title version 1.0, Shield Security version 11.1.1.