Last Modified column on Backend Pages listing displaying wrong author

While the last updated date is working as expected on the front end, I am experiencing problems with the “Last Modified” column on the Pages edit listing on the back end. (/wp-admin/edit.php?post_type=page).

The date and time are correct in this column, but instead of displaying the name of the last person who most recently edited the page (an author) this column is displaying the person (an administrator) who edited the page previously.

I can see the correct author or admin name in the WordPress page revisions feature displaying the correct name.

It almost seems like the “Last Modified” column is ignoring the latest (author) changes in preference for the last administrator’s update.