The NTSC version of the GOUT is missing one frame at that spot (which is a reel change) compared to the PAL version. Since the audio is synched to the NTSC, there will will be a corresponding loss of synch in the Despecialized Edition at that point, with the audio being one frame ahead of the video.
We really need to be more vigilant about this kind of thing so there aren't any synch errors in the future.