From page 617 of manual it says linear retime will retime audio, however retimed clip with audio retime only works once.
For example in this picture one section has been retimed to be faster. The audio wave seen below does not update the visual according to the retime but it sounds squeezed together when you preview it (correctly) but after the right retime handle, the audio jumps to what you see in the waveform and not continuing from the speed up part.
This is wrong as you have already heard the entirely of the wave in the speed up part and now you got to hear the normal speed version of the wave again where the visual already went ahead of this audiodata. Also this makes the rest of the clip off sync.

- Screenshot 2018-09-03 09.39.42.png (550.65 KiB) Viewed 315 times
OS : MacBook Pro (Retina, 13-inch, Early 2015) version 10.13.6