title: Azure Machine Learning Experiment can't mount blob storage to compute cluster
body: <p>I'm using Azure ML workspace. I'm having an issue with running ML experiment for segmentation. When I submit a run it will always end with this error:</p>
  <p><code>UserError: AzureMLCompute job failed. BFSMountError: Unable to mount blob fuse file system Info: Could not mount Azure Blob Container azureml-blobstore-{UID} at workspaceblobstore: Unauthorized. Cannot access the storage account with the given account key. Please verify that the account key is valid. Info: Failed to prepare an environment for the job execution: Job environment preparation failed on 10.0.0.5 with err exit status 1.</code></p>
  <p>I believe that documentation says that this blob is created automatically for storage of model files.</p>
  <p>Storage account in which this blob resides is integrated into VNET. Datastore has <code>Use workspace managed identity for data preview and profiling in Azure Machine Learning studio</code> set to yes, access key has been copied from storage account portal page, number of times. I have no idea why is this happening.</p>