File MPEG TS, when imported to Premiere, doesn't show 2nd audio stream 2.0

Hi!

I have a .ts file that contains 2 audio streams (AC-3): one is English 5.1 and the second one is Spanish 2.0

When I import this file to Premiere Pro CC, the metadata only shows 1 audio track 5.1 but no audio track 2.0. Therefore, when I drag the file into a new sequence, the only audio shown is the 5.1.

I can perfectly switch between audios if I play the file with VLC or Switch, but not with Premiere Pro CC. Can anyone help?

Thankss