On a brand new install of Duplicati Beta (18.104.22.168) on Windows 10, I setup a new backup. The backup location is a Scaleway (s3-like) bucket. The connections works fine.
When I attempt to sync, it fails with this error:
System.AggregateException: One or more errors occurred.
---> System.AggregateException: The stream does not support concurrent IO read or write operations.
---> System.NotSupportedException: The stream does not support concurrent IO read or write operations.
Reading the links below I changed s3-ext-signatureversion but this didn’t fix the problem.