Weird backslashes in some text widet content?

I just migrated our new site from production to live and I used Duplicator Pro to port it to the new directory/URL.

At first everything was fine, but in the process of changing over the content URLs to the https version, I seem to have broken something in a very confusing way: random widgets are having their content backslashed out, so that the html is just printing instead of rendering:

The live URL is www.beagooddoctor.org, you can see the issues at the bottom of the page. The last text widget and the footer widget are just rendering oddly as shown above in the image. I have tried looking at their code but I can’t find anything wrong. Deleting and recreating them didn’t fix it.