Book covers stats not updating

One of the stats tracked here is where your various book covers come from. However, on that page, the stats for for member uploaded covers do not seem to be tracking anything done after December 2016. I believe the "blank cover chosen by you" stat is similarly impacted, but I cannot be sure. The Amazon cover stats and no cover stats seem to be functioning as expected.

This issue came to light in this thread in Recommended Site Improvements: https://www.librarything.com/topic/330135

Based on the date, I'm guessing this was referring to lt1 stats, so this is probably irrelevant. However, there is also an open bug for the new cover stats being off: https://www.librarything.com/topic/334497