We have a number of subscription journals and all work successfully in terms of needing a subscription to access all PDF content.
However, we have one platform where all the settings are the same, the Issues are listed under subscription and payment options are set up to purchase individual articles where not a subscriber, but the PDFs remain open for all public users to view and download.
Have tried checking and resetting all settings, as well as updating the platform, but the problem persists. Any ideas on what the issue may be or how to fix it? Thanks.