Those negative % numbers don't look kosher to me. Not sure about the QP values, the difference looks "striking" at least.
But you are using both, insane settings (--preset "placebo")
and unofficial patches (--fade-compensate 0.7). So "unexpected" things might happen
More important, does the actual output look "wrong" somehow? Anyway, I'd recommend to try a "vanilla" build and compare the results...