Hi Lee,
Thanks for reaching out to Microsoft Q&A.
have you gone through this already? tried the fix and getting the same error?
https://learn.microsoft.com/en-us/azure/azure-sql/database/database-import-export-hang?view=azuresql
Please 'Upvote'(Thumbs-up) and 'Accept' as an answer if the reply was helpful. This will benefit other community members who face the same issue.