[Object object] error on enabling timed trigger function

New development in a function app has lead to a handful of functions being deployed with a [Disabled] attribute in C#. We're ready to test one of these functions, but we're unable to enable it.

Other functions can be disabled/enabled via the azure portal UI without issue. I recognize that this has been a problem in the past for functions with dashes in their names, but this particular function does not contain a dash. From the function app > Functions overview, attempting to enable fires a generic:

```
"Failed to enable /. Error: [Object object]"
```

I've tried via azure CLI as well,
`
[ ~ ]$ az functionapp config appsettings set --name --resource-group --settings AzureWebJobs..Disabled=false --output table`

This does not fire an error, and returns
```

Name SlotSetting Value
...
AzureWebJobs..Disabled False false

```

But the function remains disabled in the Azure UI and doesn't appear to execute. The job fires successfully when run manually.