Problems with exporting AAF - help?

Hi,
I am on version 15.0 beta. I have exported my feature film to my sound designer. On my resolve timeline I have 7 active audio tracks, however when my sound designer opened the the AAF file I exported, he reported that on his end the AAF opened with 7 tracks of audio but it simply duplicated track 1 to the other 6 tracks and DID NOT exported the audio the way it appears on my timeline.
I called BMD but they said since this is a beta version they are not supporting it as of yet, suggesting I should seek some advise on these forums.
Any suggestions out there? Am I doing anything wrong here?
Thanks,
Eli
I am on version 15.0 beta. I have exported my feature film to my sound designer. On my resolve timeline I have 7 active audio tracks, however when my sound designer opened the the AAF file I exported, he reported that on his end the AAF opened with 7 tracks of audio but it simply duplicated track 1 to the other 6 tracks and DID NOT exported the audio the way it appears on my timeline.
I called BMD but they said since this is a beta version they are not supporting it as of yet, suggesting I should seek some advise on these forums.
Any suggestions out there? Am I doing anything wrong here?
Thanks,
Eli