iPad and IPhone do not play my files

[JKent]

Hello all,
This is my first post and I’m coming from the world of Roon. I’m running MinimServer from an M2 MacMini with 16 Gb ram. My renderer is an iFi ZenStream. I am able to play files from the Mac, but when playing with remote devices, ZenStream right hand light is off, indicating that it is not receiving stream. My remotes show the files and tracks but do not show cover art. The track appears to be playing.
Unfortunately my png. Screenshot from my photo library showing file path does not seem to appear.    
Thank you,
Jeff