Waking this from the dead, but yes, we have the same thing. Instead, we have been staging the backups to a file share on our Portal server and then writing to blob storage as the final step, which WAS working well. But now that our content has grown, it is failing with java heap errors and other random things where arbitrary parts of our backup aren't actually getting uploaded to Azure Blob storage. We have a ticket open about it, but in the meantime, we'll explore using Azure Files only as the final destination, or potentially doing the backups entirely locally/file-share then manually copying those backup files to Azure Files or Blob storage. (10.7.1 on Windows Server).
