Aqui el motivo: https://www.native-instruments.com/en/support/knowledge-base/show/4250/i-cannot-see-the-individual-stem-tracks-when-loading-a-stem-file-into-a-traktor-deck/
Sera una version beta?
Traktor Pro 2.10.1 + Stem View:
Here’s the basic top-level overview of what NI is announcing this morning:
Traktor Pro 2.10.1 is out now – free update as usual.
Stems are now visible in the software interface
Traktor is making 65 Stem tracks available for free, and launching a 25% off sale on some online stores until Feb 29th, 2016 (a one week sale)
Kontrol S4 owners now have built-in control of Stem Decks (no mappings needed) including muting/volume/filter control
Traktor Scratch Pro 2
Sennheiser hd 25
2x db Technologies Opera 405 D