Windows 10: Thumbnails not showing after uploading files to OneDrive

Good day,


I use a 3D modelling software called Revit, which creates a preview thumbnail of the current view when you save, which can then be viewed from Windows Explorer so that you have a preview of the model file before opening it:






However, when I save these files to my OneDrive, they lose their preview and appear as below:





Even if I resave, the thumbnails stay there temporarily but within a short period they are cleared. I imagine it has something to do with the synchronisation?


Please advise as to how I could resolve this. The previews are important for visually distinguishing between types.




***Modified title from: Saving files on OneDrive deletes thumbnails***

:)

 

Disable auto-upload of photos to OneDrive

Hi Mark,



Thank you for writing to Microsoft Community forum.



Auto-upload of photos to OneDrive occurs because there is no Group Policy
setting to disable the Camera roll upload photos and videos option.



I suggest you to try the resolution suggested in How to prevent
pictures from being auto-uploaded to OneDrive and check if it works.



Note: The article holds good for Windows 10.



Thumbnails for files won’t be displayed if the File Explorer is configured to show icons instead of thumbnails.

You may turn on Thumbnails and check if it works:

• Open File Explorer and click on the
  File menu.
  
• Choose Change folder and search options to open
  Folder Options.
  
• Click on the ‘View’ tab, and under
  Advanced Settings, uncheck Always show icons, never thumbnails.
  
• Apply the changes.
  
• Restart File Explorer and check if the issue persists.
  

If the issue persists, you may clear the thumbnail cache.

Clear thumbnail cache:

• Press Win + R keys together on the keyboard to open the Run dialog and type the following into the Run box:
  cleanmgr
  
• Select the drive, and check the box for Thumbnails.
  
• Click OK and wait for the cache to be cleared.
  

I suggest you to post a feedback in the Feedback Hub
to bring back Filmstrip viewer, so that our developer team can have a look into it and include it in the upcoming updates.



Regards,

 

Thumbnails of ICO files down't show up if stored in OneDrive


Ever since Microsoft OneDrive updated to Version 2017 (Build 17.3.7059.0930), all my PDF files that I have stored show thumbnails which never happened before. Great.





However, all my ICO (*.ico) files no longer show thumbnails after they are synched like they used to. Here is a screenshot I took showing the new icons I saved yesterday (which haven't been synched) and older ones that are synched.





How do I get my icon thumbnails back?

What I've already done:

1. Rebuild icon cache (Go to C:\Users\<your username>\AppData\Local\Microsoft\Windows\Explorer; delete all iconcache_*.db files)
2. Icrease size of icon cache (Regedit; KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer; New String Value "Max cached icons"; Set to 8MB "8192")

 

Preview Pane for Images/Some Thumbnails/Photos not Working Only on OneDrive Folder

The preview pane and thumbnails as well as the Photos app are not working, but only on my OneDrive folder. It works fine on an exact copy of the same files that are not in the OneDrive synced folder structure (and known to Windows as being OneDrive).

• Open OneDrive Folder, navigate to photos directory
• Sony Raw images (.ARW) do not show thumbnails. (I have the Sony plug in installed)
• Double click on a raw file, Photos says "We can't open this file."
• Click on a jpeg file, and with preview window turned on, no preview appears
• Double click on jpeg file, opens fine in Photos, and then the preview window image appears

• Navigate to a directory that is not synced to OneDrive
• Sony Raw thumbnails show up fine. They also show up in the preview window.
• Double click on Raw file and Photos opens it up without problems

• Back to OneDrive photo directory
• Copy raw file to desktop
• Immediately the thumbnail appears and the file can be opened with Photos. The same file that it can't open from Explorer in the OneDrive directory

This is only happening on my desktop. My laptop is fine. Both same versions of Windows 10 Version 1709 OS Build 16299.19