Hey @dgaus,
Thanks for troubleshooting. This looks like a bug but please do note that you’re using Classic Elements which we’re going to phase out. You can learn more here: https://theme.co/blog/status-report-february-28-2023
To make the sections work, please revert your site from a working backup. Your web host might be able to assist you with this. If you don’t have a backup, regretfully, you will need to wait for a fix. Or, convert the Classic Sections to v2 or non-Classic Sections. Just add a new Section and recreate the Classic Section setup to the new Section. This would be tedious but this is the only way. Once you have the new Section set up, you can drag the Row to the new Section.
Thanks.