editing feature length timeline. timeline is 23.98fps. sound mixer worked in pro-tools with timeline set at 23.98fps. of course the audio is all 48khz.
i sent him an AAF from x2pro that was in sync with my fcpx timeline. on protools it was in sync with the reference video i exported for him at 23.98. but now i am reimporting his mix and it is slightly off sync.
i am able to fix this by using retime editor, however this is not exact and it kills me to not be precisely on sync.