I finally got around to testing your files. Unfortunately I can only
confirm the issue, but haven't figured out what exactly the problem is
with your files. I guess it's a problem in Audio::Scan, as it's
returning a very low number for the size of the artwork (8kB) which
seems too small for the 600x600 artwork found in the file.
I suggest you submit a bug report on github
(https://github.com/andygrundman/Audio-Scan), providing access to one of
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