having cloud sync issues

If the OneDrive icon shows Up to date but files in File Explorer keep showing syncing or seem to fall out of sync, the most likely causes are hidden or temporary files in the OneDrive folder, or an incorrect Windows Search cached status.

Try this in order:

1. In File Explorer, show hidden files and folders.
2. Check the OneDrive folder for hidden files or folders and remove any that are not related to files currently being edited.
3. Look for temporary Office files. Close any open Office files, then clear the Office document cache.
4. If temporary Office files are still shown as syncing, only delete them if it is safe to do so. This can cause data loss.
5. If the files are not temporary Office files and cannot be deleted, move them out of the OneDrive folder and check whether sync status returns to normal.

If that does not help, check whether Windows Search is caching the wrong sync status:

1. Select Start and search for Services.
2. Open Services.
3. Double-click Windows Search.
4. Set Startup type to Disabled.
5. Under Service status, select Stop.
6. Select OK.

Additional checks from Microsoft support:

• Make sure OneDrive is actually running in the notification area.
• If Microsoft storage is full, new files will not upload or sync.
• If sync remains stuck, unlink and relink the PC to OneDrive.
• On older Windows guidance, resetting OneDrive can force a full resync, but it re-syncs all OneDrive files and can take time.

For a work or school library, another repair path is to stop syncing the affected folder and start syncing the library again. This creates a new local folder and may add a number to the folder name.

References:

• The OneDrive sync status icon incorrectly shows "syncing" in File Explorer
• Fix OneDrive sync problems | Microsoft Support
• Fix OneDrive sync issues on Windows 8.1 or Windows RT 8.1
• Repair sync connections in OneDrive for work or school | Microsoft Support