Second loop DT count incorrect in BadgeGen

Question

I'm having a relatively minor, but annoying issue with the BadgeGen count for my DT Matrix.  I've completed one full loop, and I've completed 64 combos for my second loop, with 17 to go before reaching 2x Diamond.  My totals are accurately reflected in my "Difficulty/Terrain" chart on my main page, but for some reason my BadgeGen is showing I need 18 more to reach the "next level" badge rather than 17 (see screenshots below).  I thought maybe there had been a changed combo and the stats were just lagging behind in BadgeGen, but this is an issue that's been going on for many months, so I seems like it may be something else.  Any ideas what could be causing this and/or how to fix it?

Comments

What was the time when you logged the last cache counting to the second loop? The stats are updated somehow separately so one of them might be outdated for some time.

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The most recent one I got was from a few days ago, but I don't think that's the issue.  The discrepancy has existed at least since the time I completed the first loop, which was about 6 months ago.  For example, last week, my D/T chart correctly showed that I needed 18 to complete the second loop, but BadgeGen indicated that I needed 19.  I then logged a new D/T combo on Sunday, and by Monday my D/T chart had been updated to show that I now need 17 to complete the second loop, and my BadgeGen had been updated to say that I need 18.  It's being adjusted downwards with each new find, but there is a persistent mismatch that keeps getting carried over.  It's very puzzling.