Duplicate songs on iPhone 12 Pro Max after syncing

I just got my phone and, after setting it up, tried to restore it from a backup. It kind of worked, but most of the music was still missing. Since I didn't want to go through the thousands of songs I have and redownload them one by one, I decided to sync my phone on iTunes. After syncing, Music shows one album, but every track is duplicated under the same album. Two track ones, two track twos, etc. I checked to see if one was a cloud file and the other was actually on the phone, but every one I tried, both songs were on the iPhone and I didn't have to download anything. I tried restarting both the computer and iPhone and resyncing, that didn't work. I checked the duplicate songs on iTunes option in iTunes and yes, those are duplicated, but there are thousands more that don't show up on iTunes as duplicates but was put onto the phone as a duplicate. If it comes down to it, I'll remove all of the music and just resync and hope it doesn't duplicate again. But if it happens in the future, it would be nice to have a solution. Thanks for any help you can give me!