Azure Function - Cron Trigger - ok every second but not every minute - azure

Question

I'm trying to create a CRON for every minute in my Azure Function timer trigger.
As per the documentation I found this: https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-timer#cron-examples
"0 */1 * * * *" doesn't run at all.
"*/1 * * * * *" does run every second.
Where am I going wrong?
function.json looks like this:
{
"bindings": [
{
"name": "myTimer",
"type": "timerTrigger",
"direction": "in",
"schedule": "0 */1 * * * *"
}
],
"scriptFile": "../dist/TriggerWork/index.js"
}

Answer 1

I could reproduce your issue with {AzureWebJobsStorage} connection string entry in the local.settings.json is somehow mismatched in its format:
{
"IsEncrypted": false,
"Values": {
"AzureWebJobsStorage": "{AzureWebJobsStorage}",
"FUNCTIONS_WORKER_RUNTIME": "dotnet"
}
}
For all triggers except for HTTP, a valid AzureWebJobsStorage connection string is required. The reason behind this has to do with scaling out to multiple VMs: If the function scales out to multiple VMs and has multiple instances, a storage account is needed to coordinate to ensure that only one instance of the timer trigger is running at a time. This poses some difficulty if you are trying to develop locally but, unfortunately, this is currently a limitation of the timer trigger.
For more details, you could refer to this similar issue.