Cannot sync music from Mac to iPhone
When trying to manually sync music from my MacBook Pro to my iPhone 11, nothing happens and an error message arises stating "Some files were not copied to the iPhone because Cloud Music Library is enabled on this iPhone." So I researched this topic and discovered that Cloud Music Library is only associated with Apple Music, which I am not subscribed to. I also saw people having a similar issue and saying there was a setting to turn off the "Sync Library" option in the iPhone music settings; however, this option does not work for me as the slider will not stay on off and the problem persists. I have tried nearly every "solution" recommended to me and nothing has worked thus far.
Wondering if anybody could help figure this out.
iPhone 11, iOS 13