BPMs in Traktor Pro2 Wont Show up in Track List

In settings you chose what should be displayed in tracks list..
Read the manual it says how to do it….

The exact same thing happened to me, I emailed Native Instruments and they told me what to do to fix it and it worked.

Are you loading tracks directly from Itunes? If so, you shouldn’t.
You should create a Traktor playlist. So just right click on ‘Playlists’ (below Track Collection) and ‘create a new playlist’ and then drag and drop the songs from your itunes to your new Traktor Playlist. Once you play a song the BPM’s should then save.