Cron not running when frequency is less then default cron frequency?

You have to trigger cron often enough to to be able to execute the most frequent cron job.

We should document this.
The D7 version talks about needing to configure cron to run every minute, which made me wonder if this was required for D8+.

You only need to run it every minute if you have cron jobs that are that frequent or if you rely on fast queue processing which by default runs on every cron run.

This is now documented.

Automatically closed - issue fixed for 2 weeks with no activity.