Yes, whenever I click on the second audio channel on my Nexus 7, the program crashes. Simply closes the film, goes back to the little collection of videos. There is a split second before this when it says "loading..." Particularly frustrating when the second channel is in the language that you can understand -- and the first one isn't!
Given that VideoLAN does offer the option, I can only conclude that this is a...bug. Happens on all .avi's. Haven't tried any others because all the films I want to see happen to be in this format.
Am really hoping that others are experiencing the same problem so that it will get fixed:)