[Michael Smith]

This had me troubled as well.

In my case when I detached audio (which I do a lot) the audio enhancements went away. Here’s how to get them back.

At the bottom of the inspector window where the audio enhancements should be, there is a section called Audio Configuration.

In mine there what looks like 3 tracks there but the top one is a configuration setting, not the actual track as it doesn’t have the little speaker icon next to it. Click on the actual track below that and the Audio Enhancements will return.

Probably when that top ‘track’ is selected it’s actually selecting both of them and it can’t do an audio enhancement on both tracks when they’re not grouped. In my case they were from different mics (and one was turned off) so obviously they would have completely different needs. So it knows to not apply the same enhancements to these different tracks.