I think i touch another bug related to path loading.
When i launch the indiserver via the webmanager (started as daemon) on the remote server,
the gphoto_ccd client cannot load the saved configuration.
As this is working when i launch the indiserver manually, i guess it's a path related issue in webmanager/indiserver launch command.
I will try to debug that but if you have any hints, it's welcome