The design of the new environment / CV selector can be confusing because the content view dropdown is invisible until you select an environment. See https://community.theforeman.org/t/new-host-ui-doesnt-allow-me-to-change-the-current-content-view/32113 Instead, the CV dropdown should be visible but disabled.
Created from redmine issue https://projects.theforeman.org/issues/36184
Upstream bug assigned to jlenz
Moving this bug to POST for triage into Satellite since the upstream issue https://projects.theforeman.org/issues/36184 has been resolved.