How to generate:
1. Set the fade-out to eg 10 frames.
2. Save the audio track as AAC (Sony AVC).
3. Reimport the saved audio track to the timeline.

The track is correctly faded out, but the last 2 frames (even a little more) are just completely muted. Even if we set the fade-out to only one last frame. When fade-out is set to 1 frame, the audio is simply cut 2 frames earlier. This can be heard when we play back the last two frames.

Attachments below:
1. Fade-out = 10 frames.
2. Fade-out = 1 frame.

Does it make sense or is it just a minor mistake?