For the sake of simplicity: please test the same song in traktor (keylock set to scratch setting first) and then on prime hardware. Compare when traktor setting are on hi quality.
If you get different results both time then it’s time to continue this discussion here.
It was already noted on the forum how Elastique v3 does that phasing thing on SOME songs, mainly in the trance genre.
But, since the code is outsourced, I doubt Denon can do anything about it on it’s own.