All of a sudden the Settings section on the library ribbon is missing. This is the section that contains the Library Settings, the Shared With icon and the Workflows icon. This is happening site-wide. I opened the site in FF and the Settings section is still there. What has made it disappear in IE?
My site is an Office 365 SharePoint 2013 site. I'm using IE 10. I asked a co-worker to check and she can still see the Settings section.
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