Here are some things you can try to fix OneDrive not syncing specific files or folders:

1. Check the size of the file

   • Files larger than 20 GB can’t sync with OneDrive



2. Check what types of files you are trying to sync

   • Some types of files are blocked from synchronizing with OneDrive



3. Check your internet connection

   • OneDrive syncing may be affected by a poor internet connection



4. Check your security settings

   • OneDrive may not sync if you have blocked certain programs, applications, network traffic, or ports



5. Check for corruption in your OneDrive files

   • Sometimes OneDrive does not sync if your files have become corrupted