360 Sync Troubleshooting : Error (4393) The Tag Present In The Reparse Point Buffer Is Invalid
Written By Michael Reuter
Data Source: Windows (OneDrive)

Data Destination: BIM 360

Error: (4393) The tag present in the reparse point buffer is invalid

360 Sync version: 3.4.2.xx or earlier

Full Stack Error: 2022-06-15 16:24:03,916 ERROR - An unexpected or unknown error occurred in the mapping.

System.IO.IOException: (4393) The tag present in the reparse point buffer is invalid: [C:\Users\james.shields\OneDrive - ceg.co.uk\Desktop\wates\02. Gwk & Frame - Analysis issued RBA 6.5.22\Enq Addendum 2 - 14.03.22\C2\71 BWIC - Service Diversions]

What happened: When the user tries to sync files from OneDrive to BIM 360, the user starts to get a (4393) error. The user is unable to successfully run the sync between OneDrive & BIM 360 any longer. We have only seen this error occur between OneDrive & BIM 360 but expect that OneDrive & any other connection would cause the same error.

Solution: There are potentially 2 methods for solving this problem.

  • Command Prompt Method
    1. Open a Command Prompt by clicking the Windows button & typing in “CMD"
    2. When the Command prompt app pops up, right-click on it & choose “Run as Administrator."

    1. In the Command prompt, type chkdsk c: /r /f
    2. When the command prompt asks to answer Y/N, type Y & hit Enter
    3. Restart your computer
    4. Retry the sync. Did it work? If so great! If not, try:
  • Reset Onedrive in localappdata
    1. Click the Windows Key + R
    2. Copy & paste this into the command line:  C:\Program Files (x86)\Microsoft OneDrive\onedrive.exe /reset

    3.  Restart your computer
    4.  Retry the sync
Explanation / Why did this happen? This error is actually a sync error with OneDrive itself. We have seen this error occur only a few times with 360 Sync, but it generally happens when there are hundreds or even thousands of files in a folder that OneDrive and/or 360 Sync is trying to sync.

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