On Chrome Windows 7, I noted twice today that ANI on English Wikipdia was not displaying current threads, but was displaying threads three days old. Refreshing did not make a difference, although occasionally it would display the current page.
The issue evidently struck others as well, as a user who tried to add a new section wound up adding it to the old material instead of the current page: https://en.wikipedia.org/w/index.php?title=Wikipedia%3AAdministrators%27_noticeboard%2FIncidents&diff=595313330&oldid=595312917
This seems to have happened again, here:
On the IRC English Wikipedia admin's channel, an admin noted that every time he tried to load it, the page was showing a post from 21:53, 10 February 2014 (UTC) at the very bottom.
When I communicated with an editor about the issue here - https://en.wikipedia.org/w/index.php?title=User_talk:NE_Ent&oldid=595314919 - I noticed that another editor had been impacted in the section above.