Hi Sem,
Appreciate the minimal debug log with --dump bodies, thanks!
I suspect a path with a double // or /? like in this post:
Or a leading / like in this post
If not then we probably need to narrow in on the path/file causing the issue. Are you able to list with
rclone lsd scality-PROVA1:bck.storage.cloud/linuxhosting3/
Also please post the redacted output from
rclone config show scality-PROVA1: