Windows 11: LibreOffice file icons briefly appear correct, then change to generic icons

Hello,

I am using Windows 11 with LibreOffice and I am experiencing a persistent issue with file icons.

For .odt / .ods / .odp files:

  • When refreshing the Desktop or opening a folder, the correct LibreOffice icon appears for a split second
  • Immediately after, it changes to a generic document icon

Relevant details:

  • File associations are correct
  • LibreOffice repair and reinstall do not fix the issue
  • Clearing Windows iconcache and thumbcache do not fix the issue
  • The issue only happens when thumbnails are enabled in File Explorer
  • Disabling thumbnail previews prevents the issue, but is not a real solution
  • This is not related to OneDrive

System:

  • Windows 11
  • Local Desktop (not synced)
  • LibreOffice version: 25.8.4

It appears to be a Windows 11 File Explorer icon/thumbnail cache issue that overrides the correct application icon after initial load.

Is this a known issue, and is there any recommended fix or workaround?

Thank you.