Hi @KWL,
Possibly that’s similar to the rclone Amazon Drive issue. rclone supports many storage systems, and commands like move, check, and mount. It’s one of the suggestions that often appears on Duplicati cloud to cloud migration threads. While it looks like cloud storage services generally didn’t add support for legacy file transfer methods, it looks like some of the legacy clients added cloud support. For example FileZilla added it to the paid Pro version.