Here is a video of my problem,
http://youtu.be/SINVsErxujM

Aha, I have found the problem LOL

I reset my Nokia N9. Transferred Maroon 5 album as seen on the video above. It took 30 minutes to fully sync album art LOL. Now it works fine and now it even shows up and no more black screen

I appreciate your help. However you should give this a try...

1. Download http://www.poikosoft.com/
2. Convert your music files to .M4A (Dolby Pulse HE ACC) 64KBit/s Stereo. Fill in your Tags etc, add album art.
3. Open MP3Tag and add the songs and then highlight all the tracks and just copy and paste album art and save.
4. Send to your N9.

The sound quality of the Dolby Pulse in 64Kbit/s Stereo is exatcly same as MP3/WMA at 320Kbit/s, give it a try

I simply use ID3 editor to add art to songs.
N9 finds them immediately (mp3, flac, m4a) So dont know why you still need to wait?

But why do you save the art twice? Not clear to me.

I had the same issue until I fixed another bug relating to the gallery, now both my gallery and my cover art are working properly.

Read through the following, might help:

http://talk.maemo.org/showthread.php?t=86059

Are you using PR1.3?

Yes of course.
Here you can test a track.
Let me know when you've tested it so i can remove it from my folder:
https://dl.dropbox.com/u/18936922/01...e%20Chords.mp3

What program do you use to encode your music?
Also do you use MP3Tag?

Downloaded you may remove it off from your folder

Here is one of my file in .M4A (Dolby Pulse HE) format. Let me know if album art works straight away and if they appear in the album list.

http://www.mediafire.com/?o3qadzrnd2cc08c

I tried ID3 Editor but does not work with .M4A?

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Cant test it.