Azure function blob trigger not working through UAMI

Question

Hi,

I have deployed a function app and I have created blob trigger using Node / JavaScript V4. Due to organization policy we cannot use Key or Shared access token, and hence I am using UAMI for authentication to storage account from function app. I have tried multiple ways to set the Environment variable to get this working however I have no luck, the function does not trigger upon adding file into the blob container

Function app User assigned Identity : The identity already has Storage Blob Data Owner, Storage Blob Data Contributor and Storage Queue Data Contributor role assigned

Environment Variables:

NodeJs Code

Any help is highly appreciated.

Thanks