I have a cron.yaml file in Google AppEngine standard environment:

cron:
- description: "some_description"
  url: /some_url/
  schedule: every 60 mins from 05:00 to 18:00

The same syntax works well in my second AppEngine project (but that one is in flexible environment)

The url works well via browser and locally. But cron job fails without any logs.

I’ve updated gcloud, there are no firewall rules, I tried with another url etc. But it doesnt work.