Anyone else getting weird scoring with Veritas Mock Tests?

I'm taking my GMAT in 2 days and I've done Veritas, Manhattan, and official GMAT Mocks.

My Veritas verbal scores have been siginificantly worse than the other two (35 and 39s through 6 mock tests vs. 43-46 for both Manhattan and official). I chalked that up to Veritas SC being harder than others, similar to how Manhattan quant is harder than official ones (supposedly) since my %s seem to fit the scores for each test provider.

But today, I got an even weirder output from my Veritas test. My quant scores have been consistently going up through all the mocks, starting from 45 all the way up to 50 from my 5th Veritas test. However, in my 6th test I got a 47, which would have been fine if I screwed up questions but when I reviewed the test, I only got 3 questions wrong.

To compare: I scored a 47 in my 2nd Veritas mock where I got 13 wrong, a 48 in the 3rd, where I got 10 wrong, a 49 in the 4th with 6 wrong, and a 50 in the 5th with 4 wrong.

I can't understand how my score could drop to 47 when I have the least number of mistakes in this test and my mistakes were spread out (on questions 4, 14, and 23). It seems to indicate that, despite getting questions right, the CAT algorithm didn't give me more difficult questions