@jpnl Thank you for bringing this issue to our attention! I’m sorry that our plugin caused a problem on your site. A bug report has been created and is under review by our product team.
Workaround
We are aiming to release a bug fix for this in the 20.1 release, but until then this can be fixed by using the release candidate here.
What’s next?
Our product team will assess the severity of the issue and assign a priority level to the report. Our developers work on the highest priority issues first. We cannot give you an estimate of when they’ll start working on the issue.
If you have any further information that may affect the prioritization or help our development team solve this bug, please leave a comment or subscribe to the GitHub report to get updates on the issue.
https://github.com/Yoast/wordpress-seo/issues/19699