Task Scheduler / Cronjobs not working?

Re: IP v2a (FI 2018)

I’ve got my cronjob set up to run at 3am every morning:

curl http://[my url here]/tasks/run >> /dev/null 2>&1

and to mail me the output. Even though the job’s running, no reminders are being sent out and no output is being received (same if I test the cronjob).

Is there any way to receive a more detailed report, or to ensure that some output is being generated even if no reminders are being generated?

Hoping to receive an answer to this. Are automated overdue invoice emails working properly for everybody else on IP/FI2018 ?