I have tried Vegas Pro 15 and MP4 clip with 2 audio tracks is added to the timeline as 1 video and 4 mono audio tracks. It looks like option "Import stereo as dual mono" is on but it is not. When I import clip with 1 audio track it appears correctly as 1 stereo audio track.
Does anybody encounter the same problem? Can be anyhow solved or is it simply after-release bug?