@Ralph Bohovowitz Welcome to Microsoft Q&A Forum Support, Thank you for posting you query.
- For testing purpose, Can you Add Storage account contributor roles and check for the status?
- Can you share the script and the complete screenshot of the error message ?
Additional information: There is a video and supported scenarios and restrictions :on-premises Active Directory Domain Services authentication over SMB for Azure file shares in this article which explain more detailed information on configuration part, also cross-verify the prerequisites.
Enable Azure Active Directory Domain Services authentication on Azure Files
Based on the error message you can refer to this MSDN thread which provides some idea on your scenario.
Looking forward for your reply
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