Crontab schedule is excluded from database fetching

[docmagic70]

When I create a PeriodicTask with a crontab schedule in the django admin, it is not always fetched properly by the celery beat process.
It seems that some hours are excluded except the hours around the system time and 4 AM since this is used by some celery cleanup job.

I do not see the reason for the exclusion, since the scheduler is only updated on restart or on changes.
So some crontab tasks will never be executed.

[docmagic70]

@auvipy : Could you please briefly comment, if the behaviour described above is correct or if I am doing something wrong?

[docmagic70]

I was using version 2.8.0 and it seems to be fixed with version 2.8.1

[auvipy]

then update to that please