Getting audio different projects when encoding multiple sequences in AME from Premiere

When I have multiple sequences in AME queuing to be encoded to MPEG2-DVD the final clip has some audio from a completely different project.  This has happened several times.  I am using the latest update Premiere 12.1.2 (build 69) .  So far, this has only happened when encoding to MPEG2-DVD or Bluray, not H.264.  I could possibly (although unforgivably) understand if all of the encodings were simultaneous, but since they are encoding one at a time, I don't understand how this could happen.