A new Error Code?

Hi there,

Just trying to render out a 23 seconds sequence with Media Encoder - a project from After Effects 2017 into the AME queue - and it failed.  One of it's counterpart renders added to AME the same way worked fine, but I got this error message:

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- Encoding Time: 00:00:42

12/20/2016 09:57:59 AM : Encoding Failed

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Export Error

Error compiling movie.

Render Error

Render returned error.

Writing with exporter: QuickTime

Writing to file: /#####/#####/######/################_####.mov - THIS HAS BEEN CHANGED TO PROTECT THE JOB (NDAs)

Around timecode: 00:00:00:01

Rendering at offset: 0.000 seconds

Component: QuickTime of type Exporter

Selector: 9

Error code: -1609629695

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I can't find a reference to an error code -1609629695

Any clues?