This is usually because you don’t have enough iCloud storage. Ineligible: The Ineligible status icon tells you that the folder or file could not be stored in iCloud.Control-click the file, then choose Download Now. You must be connected to the Internet to work with the item, unless you download it to your Mac.

In iCloud: The In iCloud status icon tells you that the folder or file is only in iCloud.The only icon you won’t see is for downloaded items.

View iCloud status: When iCloud Desktop and Documents is turned on, your folders and files may appear with one of the following status indicators in the iCloud Status column: Note: Even if the iCloud Status column is not in the Finder window, you can still see the status for most iCloud file transfers next to the folder or file name.

Show info below icons: Open a folder in the Finder, or click the desktop, choose View > Show View Options, then select “Show item info.” Item info can include file size, movie length, image dimensions, and more.

Icloud status icons / symbols: macOS Sierra: View file, folder, and disk information Another good option to view status of files is to select ' Icloud Status' Column in finder, to select this go to view menu, select 'Show View Options J' then ' icloud status' AND ' calculate all sizes' If you want more info on icloud status turn on the ' Show Status Bar' option in view menu of Finder - this will let you see all of the documents that are 'P ending' (waiting) to upload. The following apple support article (link below) has a list of icould icons that are used for your mac to show when it is uploading / downloading files from your desktop and documents to your icloud account (the symbols are extracted below). There are a couple of posts on this on forum (will try to find links).

Idrive icloud