Some samples loaded in the Remix Decks can be played, but you can´t here anything (like the volume is zero) and the button of the not working sample is black during play. If you load exactly the same sample in a standard Track Deck (not a remix deck) it works fine. With Traktor 2 and Traktor 3 the same remix set is also working fine. I have this issues only with some of the samples, not all. Also the order in which you play the samples is having an impact - so after specific other samples plays first, it works. After playing other samples the same sample is not working. Very strange. I cannot use Traktor 4 in that way!!!