click the three hamburger lines in the upper right hand corner of the dvdfab interface,
click settings - click the default settings button in the lower left corner of the general settings page
this will reset dvdfab back to factory default settings, restart dvdfab and retry the disc again and see if you can select
the DTS track,
october262
I reset to default settings as per your suggestion but got the same result.
I've tried different combos too in the past:
1.)Removed the Mandarin track and then defaulting to the DTS Cantonese.
2.)Removed the Dolby Cantonese and defaulting to DTS Cantonese.
3.)Removed the English track and defaulting to DTS Cantonese.
4.)Removed the Dolby Cantonese, Dolby English, and defaulting to DTS Cantonese.
5.)Removed the Mandarin and English, and defaulting to DTS Cantonese.
It simply refuses to default to DTS Cantonese unless I make it the only track available by removing the Dolby Mandarin, Cantonese, and English tracks.
The DVD must be specially coded in a way that it won't default to DTS if there's other tracks available.
I did notice on my Denon receiver that when I do play the DTS track, it's the only DVD 
EVER that says "DTS 96/24" on the display.
I am stumped.
Attached is the newest log.