Play Rate does not affect audio tracks

Play Rate does not affect audio tracks. Slowing the play rate also causes the audio tracks to repeat with an offset.

Note: This is working straight from a Sound Wave. If you use a sound cue, the offset does not occur.

1. Open the attached project
2. Open the sequence and hit play

Result: Audio track plays to completion and doesn't loop

1. PIE

Result: Sequence plays at 0.2 play rate. Audio track does not play slower, but loops with an offset. It appears to extend the amount of time it plays according to the play rate.
Expected: Audio plays at a slower rate.