[Ethan Mallove]

The solution is to clean the Media Cache directory manually. E.g., the below menu item didn’t do the trick:

Edit -> Preferences -> Media -> Clean

Instead, I deleted all the files in the Media Cache directory from Windows Explorer:

C:\Users\\AppData\Roaming\Adobe\Common\Media Cache

Then, reimporting forced the audio to be “reconformed”, and voila – all my audio waveforms are back!

Issue resolved.

[Ethan Mallove]

Is there a way to get it to default to a higher-speed? I increase the speed with J and L to 2x, but after halting playback – Premiere reverts back to the default 1x speed.

[Ethan Mallove]

For Windows users, it’s Ctrl-Alt release.