The AI powered audio enhancer [0] seems broken for me -- tried multiple times and every time it takes a long time to process and reports an error at the end:
> The audio file is in a format we can't understand. Ensure the file is not corrupted or convert it to a standard wav or mp3 format to try again.
I used this service without issue a few days ago. Not sure what's changed now.
0. https://podcast.adobe.com/enhance