Album Artwork Wrong on iPhone but correct in iTunes

Hello Flyers182AVA,

Thank you for using Apple Support Communities and for sharing these details with us. You've done a great job in troubleshooting this unexpected behavior. We'd like to recommend one more step to see if we can get this issue sorted out. Try the steps below:

1.) Delete the Music app off your iPhone. This step will remove songs you've downloaded or added for offline use: Delete apps on your iPhone, iPad, and iPod touch - Apple Support

2.) Reinstall the Music app: Redownload apps and games from Apple - Apple Support

These steps might be able to help refresh things. If your issue continues, please reach out to Apple Support. They might have to investigate this issue further with you. Use this link to reach them: Get Support

Thank you for using Apple Support Communities. Take care.

Hi Flyers182AVA,

When you delete the Music app, any songs you've downloaded directly to your device or synced will be removed, so you'll need to re-sync those: Sync music between your Mac and iPhone, iPad, or iPod touch - Apple Support

Take care.

Hello Flyers182AVA,

Thanks for those details. At this point, please reach out to Apple Support directly, as this may require closer guidance: Get Support

Cheers!