up till now I have had zero issues with S4 and Traktor, but with 2.02 I am finding that sometimes my track decks get stuck after using SHIFT-Jogwheel to speed thru tracks.
The decks just lock up and nothing does anything. I can press play on the software or the return to beginning track but it wont play. The phase meter just cycles back and forth. I have to exit the program to get rid of it.