Board Thread:Support Requests - Getting Technical/@comment-7712458-20140120004727/@comment-1038387-20140120074144

Yup, same here. I check those pages daily, and at the moment am deleting a large, deprecated section of my wiki that requires checking UnusedFiles, UnusedCategories and LonelyPages. It's happened before in the past, the cache skipping a couple of days. Doesn't make it any less annoying.

You could ask Wikia about it.