Media Encoder Export issue with more than 2 channel of audio

Dear all Tech Boffs and Problem solvers collective,

I have a curious question on; when I import a Premiere Pro CC sequence into Media Encoder, which has more than 2 channels of audio. It fails to export.

This works fine when i export from Premiere directly. However the opposite when done in ME.

What i'm trying to export is a ProRes 4444 with 6 channel stereo output via Media Encoder, using a Premiere Pro sequence of an edit.

I have done experiments with 2 channels of audio, which has been absolutely fine.

I did a quick test whereby i tried it with picture and audio selected (Which failed) than without audio (Which worked).

Thus the conclusion has to be audio output conflict!

I have also gone into forums which suggested other options, which didn't work either.

We work on a Mac, so Nvidia firmware updates are not the issue as we use ATI graphics card and Black-magic video card.

This was the error message that is getting logged below. However it has been discussed that its a generic message rather than something specific.

This is not so much a show stopper issue, but a hinderance if you wanted background exports happening whilst needing to work in Premiere.

------------------------------------------------------------

- Encoding Time: 00:00:00

02/17/2017 04:05:20 PM : Encoding Failed

------------------------------------------------------------

Export Error

Error compiling movie.

Export Error

Exporter returned bad result.

Writing with exporter: QuickTime

Writing to file: /Volumes/Online1_Storage/test.mov

Around timecode: 00:00:00:00

Component: QuickTime of type Exporter

Selector: 9

Error code: 1667785070