The CI for the BlueBanquise project runs in GitHub Actions hosted runners, in an Ubuntu 18.04 virtual machine. The project runs unit tests for the Ansible roles with the molecule tool.
There is a recurring problem with the unit test of the role core.time where the idempotence test occasionally fails in GitHub Actions. Despite multiple attempts to reproduce the issue locally, the molecule test always succeed in my lab system. Usually, a new run of the CI job allows to successfully pass the unit test.