Error generating AAF -

What version of OS X are you on?

Are you able to make one of these Prores media files available for us to look at?

Media is just Prores 422HQ from Amira. Nothing fancy.

Getting this a lot at the moment. Cant seem to source the issue.

Writing AAF file
Adding assets to AAF file
Adding essence for asset [A008C044_161026_R4JM] to AAF file
Opening audio extractor for portion 0 of asset [A008C044_161026_R4JM]
Failed to initialise audio extractor with default bit depth of 16
Error Setting up for audio extraction (The operation could not be completed)

Suggestion: Does this movie contain an unsupported audio format ?

No AAF file has been generated.
X2Pro Audio Convert 4.0.10


Any suggestions?