When I arrange the one shots on an audio track instead, it sounds perfect. if you look at the resampled audio track, you'll see that it doesn't have the gap of silence, it's exactly the way I want it to be. This can be seen on the yellow-highlighted audio track (the very last track in the picture).
The snapshot of the one shot sample in Drum Rack looks like the end is faded out. I see that "Fade Out" is set to 0.10ms as shown in the picture below. However if I set it to 0.00ms, it doesn't change anything. The "fade out" part of the one shot is still there as shown below.
