Adobe Premiere not passing source timecode

[noiseboyuk]

I've searched the DUC, I've googled furiously, and myself and the editor have tried everything we can think of, and seemingly followed every possible lead. No matter what we do, Pro Tools does not pick up source timecode from a Premiere edit. We've tried - OMF, AAF, whole files, trimmed files, BWF, AIFF, imported via Adobe Audition - probably tried other things that I've since forgotten. PT just says that original time stamp is that from the Premiere timeline, not from the rushes.

Footage was shot on an Epic Red, Audio was BWFs recorded on Boom Recorder with good timecode and synced to picture. PT is HD 12.7.0. Very grateful for any clues, ideas etc.

They dubbed Gone Girl somehow, right?