Hi,
I recommend opening a new support request in the Azure portal so they can help you troubleshoot. There is nothing showing on Azure status page, but another person reported same thing earlier so could be related.
Azure Service Health: https://portal.azure.com/#blade/Microsoft_Azure_Health/AzureHealthBrowseBlade
Does it happen if you create a test storage account in a different geo/region?
If the above was helpful please click Accept Answer.
Thanks.
-TP