If files aren't syncing properly between the Zoho WorkDrive Desktop app and Zoho WorkDrive itself, there are several diagnostic steps worth working through before contacting support.
Confirm you're on the latest build of Zoho WorkDrive Desktop Sync. If you're not certain, download and reinstall it fresh from Zoho's official WorkDrive desktop sync page.
If your antivirus software has a ransomware protection shield covering the drive where your sync folder sits, this can silently block WorkDrive from syncing. Whitelist the WorkDrive Desktop Sync application in your antivirus settings if this applies to you.
If another application on your computer is holding a file open, WorkDrive can't sync the latest version of it. Quitting the application holding the file should allow syncing to resume.
A "permission denied" style sync error is often resolved by granting your user account full control over the WorkDrive sync folder. On Windows, this can be done via Command Prompt:
If none of the above resolves it, Zoho's support team will generally need the sync application's logs from the affected computer to investigate further.
Zoho may follow up requesting a screen-share session to investigate further, and it's helpful to note the specific file or folder names affected, along with screenshots comparing what you see on the web versus the desktop sync, when reporting the issue.