@Greg Fritz
Thanks so much for providing this information. I confirmed that archive tier is not currently supported for ZRS accounts. If you wish to set Archive for a blob the storage account must use LRS/GRS/RA-GRS.
Apologies for the confusion here and any inconvenience this may have caused. I am working to have a note added to the Azure Blob storage: hot, cool, and archive access tiers page that calls this issue out.
Please let me know if you have further issues or questions and I will be happy to assist!
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