iTunes only syncing some songs to iPhone 13 Pro
I have a late 2013 iMac, along with an early 2011 MacBook. I no longer use the MacBook and have put my entire ITunes library on my iMac. In recent years, I have had no issue syncing songs from my iMac to my various iPhones. I upgraded to an iPhone 13 Pro a year ago and just kept the songs that were on my IPhone 11 on my new phone. A month ago, I decided to update the songs (add/remove) I have on my iPhone 13 and while I was able to sync some songs, others will not show up my phone. When looking at music that’s on my phone within iTunes, it shows all song synced, but when I look at music on my phone there are files missing. The songs that are missing are all songs that I imported into iTunes years ago from CDs. I do not use Apple Music or share music across devices. I’ve update iTunes to as current as possible as well.
Any ideas why songs won’t sync to my iPhone?
iMac 27″, macOS 10.15