Why is there a grey "X" or "brown suitcase" on my files and folders?

KONNEKT users (Windows 10 or earlier) may see a grey "X" on file and folder icons in Windows File Explorer.

In Windows 11 it looks like

This is not an Error or a Problem. You can still work with your files without any restrictions.

This is a visualization in Windows Files Explorer of a setting that KONNEKT folders and files have, to save bandwidth.

Background:

The setting is called "FILE_ATTRIBUTE_OFFLINE". It indicates to the operating system, that this file or folder is not available immediately. As a result, Windows File Explorer does not generate previews for the files.

Workaround:

This symbol comes usually after a new installation, as a workaround, you can restart the Windows file explorer to remove it.

We use this setting with KONNEKT files & folders to save bandwidth between the client and SharePoint Online.

The visualization is not visible to every client.