Can't view functions in one function app but can in another

Question

I have two function apps, app1 and app2. App1 can display and run its functions in the 'overview' section, but the same doesn't apply for app2. Both apps are based on the same code and only have different keys. In the wwwroot folder, I can see the same files for both apps. This must be a config issue, but I'm unsure how to troubleshoot this further. When trying out:

GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Web/sites/{name}/functions?api-version=2023-12-01

I indeed get the list of functions for app1. But for app2 i get:
{

"value": [],
"nextLink": null,
"id": null

}