Trouble Syncing music after ios 16 update - NO Apple Music subscription
I'm running ios 16.2 on an iPhone 8 and iTunes 12.12.7.1 on a PC. I do not have (and do not want!) an Apple Music subscription - I just want to transfer music files from my PC to my iPhone like I have for ages. I first noticed the problem when I updated to ios 16 and some of my songs disappeared, but I don't sync very often, so it may have started earlier.
No errors are generated when I sync from iTunes, either over WiFi or USB. The "On My Device" tab in iTunes shows everything I intended to sync, but those songs are not appearing on my iPhone. There are different songs on my iPhone.
I've tried hard reboot of iPhone, restart computer, updated to 16.2, tried a different set of songs, and no luck. I really miss my Christmas music!
Any thoughts of how to fix this?
Thank you!
iPhone 8