After the mail invitation the admin is not redirected to the correct URL

After the registration of a new Organization as system administrator a mail i sent to invite the new Organization's admin. Clicking on the mail's link (for ex. http://decidim.formez.org/users/invitation/accept?invitation_token=-GZjmJySzYZQKmuzNfeB&invite_redirect=%2Fadmin%2F) does not redirect to the admin URL, but to the system URL, the log shows these lines: I, [2019-06-06T15:12:37.321795 gid://metadecidim/Decidim::Hashtag/77/16856] INFO -- : [a92e20bc-e9d0-4731-b546-0bb47a494801] Parameters: {"invitation_token"=>"-GZjmJySzYZQKmuzNfeB", "invite_redirect"=>"/admin/"} I, [2019-06-06T15:12:37.326554 gid://metadecidim/Decidim::Hashtag/77/16856] INFO -- : [a92e20bc-e9d0-4731-b546-0bb47a494801] Redirected to http://decidim.formez.org/system/ I, [2019-06-06T15:12:37.326681 gid://metadecidim/Decidim::Hashtag/77/16856] INFO -- : [a92e20bc-e9d0-4731-b546-0bb47a494801] Filter chain halted as :verify_organization rendered or redirected No changes on the routes, of course Thanks, Gian Luca