I have the same issue but only with tags, categories and authors (category/news for example). I am using a plugin to fix the problem everywhere else on my site (i.e. I am not getting any missing:updated, missing:author or missing:entry-title errors on any pages on my site) but when I use the Sturctured Data Testing tool any one of these:
/category/(name of category)
/tag/(name of tag)
/author/(name of author)
has the “missing:updated” error.
Since each of these can have several posts associated with them (i.e. the “author” could have written several posts) when you do the structured data test you see a published date for each, but not an updated date; however, you do see the entry-title and author information of the individual posts associated with the author/category/tag in question yet and thus I am not getting the missing:author and missing:entry title errors for any of these, just the missing:updated.
If however you test the individual posts that are attached to any of these, you see an “updated” date as opposed to a “published” date and thus the posts themselves to not have errors.
Been searching high and low for answers and have gotten a bunch….but no actual fix.
