I have a AVH-2330NEX connected with a maestro rr to my 2012 f150

I have an iPhone 7 and iOS 11

 

if I choose the input of iPod with my phone connected via Bluetooth, the artwork is initially displayed. If you advance one song the artwork shows as missing. When you go to the next song, the artwork displays for the previous song. If you go forward again, the artwork continues being one behind. This happens on more than one app. Thoughts as to why? Is this some glitch?

 

If I am connected via CarPlay, the artwork also seems to get behind...

On CarPlay —the first cover art is correct — then skip to the next song. The cover art stays the same and is incorrect—skip to the third song and the art for He second song is shown—

 

It stays one behind every song after that.