I posted a reply here more than 5 minutes ago.
Still this opinion of mine is missing in stream... Probably a bug.

Thank you for reporting. I have made our team aware as it looks specific to our ElasticSearch instance for our community here. They will investigate. Thanks again.

We've switched back to MySQL to allow searching to work while we look into this further. The issue is specific to our ElasticSearch instance, and not a software issue.