We encountered a regression attempting to update Kaocha in one of our projects that uses annotations on some test cases. The test failures indicate that the annotations are stripped by Kaocha.
I regret I can't share the project name / build as it is private, however the disappearing metadata tag is used like this:
(deftest ^:record-http-requests foo-works
...)
We found that the regression was introduced in this version: https://github.com/lambdaisland/kaocha/compare/v1.72.1136..v1.73.1175