Working properly in WP4.8.x?

There is a suspicious “missing collection” in the collected information.
There seems to be time when data to be collected is not extracted.

A large amount of continuous data may be extracted as if all articles were accessed. This is common to smartphone users. The person concerned actually does not have access. WordPress theme is Twenty Fourteen. Is it counted only by the article being displayed in the list? But there are times when it is beyond that. *This has occurred long ago.