Fish protocol incomplete

Always I need to edit / copy files on/ to other Linux based systems as root, I usually use the FISH protocol ( Files transferred over Shell protocol) for timesaving. Is clean, error safe fastest way.

However, when I try to access to CORELEC via FISH protocol, I always get an issues. Once I introduce the password, my file browser shows "Can’t enter in folder fish://… ", despite finally the remote folder content is showed, but I can’t delete or even reload the folder content and always I get same error message.

Please, what’s wrong?

Thank you