iTunes and IPhone syncing Issues and greyed out songs with dotted circles

I have been having a problem with syncing my IPhone with ITunes. For some reason I have a bunch of songs that are greyed out with dotted circles next to them. Some of the songs do sync and some do not. Also some songs that do sync won’t play on my iPhone.

I have noticed this especially when I had erased and restored my PC. I backed up my ITunes library to a external hard drive and set it back up after the PC restore. I then reinstalled ITunes and my backed up library. I made some changes to my music, added and deleted some things and organized my playlists. I had my music on on my iPhone prior to the PC reset. When I went to sync my IPhone with ITunes I could not figure out how to sync all the changes I had made in ITunes, so then I hit the music option on the left and it said to replace my iPhone music with my ITunes library. So I did that and it did sync the changes I had made to my music and playlists, but ever since then I have been getting the grayed out songs and dotted circles next to them on both my iTunes songs and under my device when plugged in. Also those songs will not play and some sync and some do not. Other songs will sync but they won’t play on my iPhone and it will just skip over to the next song. It is a big mess and I do not know how to easily fix this?

The only thing I can think of is to factory reset my iPhone to erase all my music then sync with iTunes? This is not something I would want to go through unless I knew for sure it would fix the problem?

Also to note I have a mixture of ITunes purchases and non Itunes purchases. I do not use or have the Apple Music subscription.