Hi Michelle,
So I'd recommend checking with another user who had lower access or logging in with a different browser in private/incognito mode. If either of these options allows you to view the email then it's just a cache issue meaning you'll need to clear the user's browser.
If the email is still restricted then I'd submit the issue to Campaign Support, since I'd expect that updating the email or user permissions should allow the email to be visible. This could mean a potential bug.
Regards,
Craig