[SBP]

Hi haven't read the whole thread but wanted to tap out a quick reply -Some time ago I saw an issue like this -cause was different sample rates in the Avid sequence. Try to export the AAF with referenced media (make a copy and convert sample and bit rate on export)

-Also have found errors using AAF from Avid with referenced .wav files -suggest you use .mxf file type in Avid then select force to target session format on import to run the PT session as .wav

hope this helps

Bruno