Remix Decks does not quantize after recording...

Are you recording with the Traktor Loop Recorder?

If so, you might not be getting the full loop or maybe there is a delay in the recording? The only way I ever made the Loop Recorder work for making usable samples in Remix decks was by making a keyboard mapping to play a track loop or cue and start recording with one button.

If you are not using the Loop Recorder, how are you making the samples to use in the Remix decks?

I have tried multiple ways making samples and Remix Sets, the samples need to be recorded and made certain ways to be used in the Remix Decks.

Something that is also a very common issue. Is that if a sample is made and has any complete silence at the beginning the start of the sample will be at the first sound. So a perfect loop such as offbeat hi hats or anything meant to start later will be perceived as shorter and not work as expected.

If a loop is too long it will not be looped, I think the max is 16bars maybe 32.

There could be something else causing your issue other than what I mentioned here. In the past Traktor has had issues with samples made within Traktor via Loop Recorder or dragged from a deck having silence at the beginning causing a glitch pop sound. But I thought that had been fixed.

I worked heavily with Remix Sets in the past but eventually started doing less with them. The amount of time making them and also simply forgetting to use them when I mixed. I also didn't really like using melodic samples because the key was so often off. Basically I didn't do as good of mixes as I liked.

Wait is this about the sequencer on the S4MK3?

If so ignore my reply. Lol