Possible issue: update audio stuck on conversion
Off Topic
Thank you for a very specific report, awesome writeup of whats happening
You could check the queue, found at:
DASHBOARD -> QUEUE VIEWER
you should see any conversion processes that are happening in there if it really is still being converted.
This is my test system:
http://iixxiicc.jamroomhosting.com/
Its setup to be using amazon S3 and is running on the latest code base we have. Could you create an account there and see if the same thing happens with the wav file in question. I think the system is similar to yours.
If it fails there too, then we know its probably a bug that is not site-specific.