Problem with multiple audio streams in BSplayer

[dooblem]

I muxed an xvid video with 2 audio streams in ogg format, with oggmux.
When I open it with BSplayer, the screen still black. However, when I select the second audio stream, the film start normaly, paying the video and the audio stream 2.
Then I try to reselect the audio stream 1, and the video keeps playing, but without any sound.
After reselect the audio stream 2, the sound of the audio stream 2 is playing normaly again.

I tried to invert the audio streams in another muxed file, to check if one of them was the cause of problem, but the problem still there.

I tried to open my file with another player (media player classic), and there is no problem with it, I can choose the audio stream without any problem.

I think the problem is a bug in BSplayer.

Thats it

thanks in advance and sorry for my bad english