The relatively new Oxford Academic platform is experiencing some “instability.” Oxford is aware of and working on the problem. Below is one problem scenario. If you encounter this or any other problem, please report it to eaccess-admin@middlebury.edu, including the journal title and issue.
We subscribe to the journal African Affairs. This morning, if I click on the current issue, I see the shopping cart icon next to all the article titles, which normally would indicate we do not have access:
However, if I click on the article link, I see the full text of the article. If I then navigate to the journal page and choose the same issue, I see the unlocked green padlock next to all the articles, which indicates we do indeed have access. 
Oxford has asked libraries to report these problems, with as much information about the journal, issue, article, etc., as possible. If you encounter this or any other problem with Oxford journals or any of our other library resources, please let us know by emailing eaccess-admin@middlebury.edu