Searching through the multiple threads, it seems there wasn't a consistent solution for album artwork bug.
>Close all apps
>Remove check from "Sync Music"
>Let all music be removed
>Now while your phone is still plugged, boot into "safe mode"
>check "Sync Music"
>Let music download onto your iPhone
>Reboot out of safe mode
Album artwork should all be fixed. Your welcome.
>Close all apps
>Remove check from "Sync Music"
>Let all music be removed
>Now while your phone is still plugged, boot into "safe mode"
>check "Sync Music"
>Let music download onto your iPhone
>Reboot out of safe mode
Album artwork should all be fixed. Your welcome.