@Werner de Bruin Welcome to Microsoft Q&A Forum, Thank you for posting your query here!
We are aware of this issue, again thanks for reporting the issue The fix has already been made, it will be released very soon.
In the meantime, they have a few options:
- Disable soft delete for blobs on the account. This will allow deleting files via SFTP.
- Delete the blobs with another protocol, such as REST.
Please let us know if you have any further queries. I’m happy to assist you further.
----------
Please do not forget to and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.