Hello @Retired_mod 

Thank you for your response. We found the issue. We use a ML Cluster with "no isolation shared" as access mode. This cluster is not compatible with unity. We set fs.azure.* variables in the cluster conf. like below to fix our issue:

fs.azure.account.oauth2.client.id.mydatalake.dfs.core.windows.net: {{secrets/mysecret/myclientid}}. 

Is there a better/proper way to do it ?

Regards