Hi, I'm having this strange issue with cover art that I'm gonna try to explain... with my limited English.
Even though I'm not modifying the cover art and "Embed cover art to music file" is unchecked, every time I do some modification to the tag on winyl -Editing the "artist name", for example, or embedding the downloaded lyrics- Everything works great on Winyl. But if I open the file on iTunes The artwork is now gone and replaced by a weird 1x1 pixel thing.
This is what regular artwork looks like on the iTunes mp3 tag editor:

And this is what happens after I edit the file on Winyl:

The reason I care about this is because I still have to use iTunes to sync my music to my iPod (And having the artwork on my iPod is very important to me)
I got really sad after realizing about this issue, I'm a singer and being able to get Lyrics this easy was a dream come true for me... I almost got a heart attack when I when I realized all the cover art on iTunes was gone (I know it sounds kinda melodramatic but it took me several years to have my gigantic library so neatly)
Is there anything you can do about this?
Thanks for your time and sorry abut my shitty English.
Edit: I forgot to add this happens not only in the latest version but in previous versions as well. Also, I'm on Windows 8.1 x64