SharePoint Search Insights Suddenly Not Providing Data

Hi All,

On a weekly basis I click on "All Site Settings" and then "Search Insights and Configuration." I would then go this section of the page:

and then download the reports. They used to be separated into individual days and I would see the search queries and their metrics for the full 28 days. However, in the last couple of weeks this information seems to be missing. No configurations that would affect this have been changed (to the best of my knowledge, and I am the SharePoint site runner), so I'm unsure what's happening.

It now only provides blank data like this:

across 4 days separated by a week, instead of every day:

I would love if someone could please assist, thanks very much.