Hello bootmad,
Thanks for clarifying that. We're happy to keep checking this.
Where are you seeing this? When in the Artist view, your device will automatically download generic artwork (microphone icon) for a specific artist from the iTunes Store. The artist in question has to have specifically set artwork to be used for their artist page for it to be displayed. If they have not set one up, then we show the microphone.
Otherwise, try these steps:
1. Ensure iOS and iTunes are up-to-date to iOS 15.4. Update your iPhone, iPad, or iPod touch - Apple Support
2. Restart the iOS device. iPhone User Guide: Restart iPhone - Apple Support
3. Re-sync the iOS device with iTunes. Sync your iPhone, iPad, or iPod using your computer - Apple Support
If you still have issues, please contact Apple Support: Contact Apple Support
Thanks and have a wonderful day.