Scripts can't access embedded coverart in audio files

myarmor and I have been talking back and forth on the forum topic for his/her script named "Coverart dimensions". You can read our discussion over there.

I must be a rare case by using FLAC audio files, because nobody had brought up any concerns and the script didn't work for FLACs, while DOpus read the embedded coverart just fine. We found through our discussion that DO doesn't seem to give the correct value to scripts through .Metadata.audio.coverart when dealing with, I'm guessing, common audio files (MP3, WMA, etc. I only tested MP3, as I hate Microsoft's sloppy codecs). DOpus can clearly read the coverart from FLAC files, but perhaps scripts can't?

Could someone on the development team look into this?

Here's an example, legally-free FLAC (with embedded coverart) you can test with (that is also a good listen):
ClickMe for music-goodness

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