I have the following Deployment Retention Policy:

And the following "open" deployments.

I had expected the cancelled deployments to have been deleted given my policy of one day and the deployments being eight and nine days old.
I have reviewed the documentation, but can't find any other settings I need to enable.
What am I doing wrong?
PS. There are other posts about this, but they were unresolved before being closed due to a lack of activity. I conclude that this is either an ongoing issue or has been resolved privately. It would be good to have a formal answer to this and the closed posts. For example,
https://community.vercel.com/t/deployment-retention-policy-not-executing-on-older-deployments/8193
