Have you checked to see if the Rendering works right with no Effect applied to the vocal track?

Which Effects are you using, destructive or Realtime DXi?

Once your vocal track is created, does BIAB create a .wav file of the same name as the songfile in the same folder?

This *may* be a bug, I'll try to find time to duplicate later. Meanwhile, you should try the above things and report back.


--Mac