Pairing problem between iOS Remote app and shared music library
I have two iOS devices; an old iPad mini 2 running iOS 12 and a new iPhone SE III running iOS 16. The Remote app runs on both, but only the iPad is pairing successfully with my shared iCloud media library (running iTunes on a Macbook with Mojave). I can't use the iPhone to control what I'm listening to over a couple of Apple TVs. Remote works just fine on the iPad. I have tried switching home sharing on the iPhone off and on and also logging in and out of my Apple account, all to no avail. I have also tried to pair the two manually, but there's no obvious way to input the Remote code in iTunes as there's no device button or icon there that lets me do so! Interestingly, Remote on the iPhone won't pair with my library accessing my iCloud library on the Music app (Macbook Pro on 12.6.2). It's all a bit annoying and any suggestions on how to fix it welcome.