I use OneDrive's File-on-demand feature.
Somehow out of nowhere, my online-only files (files marked with cloud icon) in my OneDrive folder are marked with this brown box symbol in the lower left-hand corner of each file icons. What does this icon mean?



Many options in the right-click menu are also missing from all files in the OneDrive folder (both with and without brown box icon), notably the option to control OneDrive file-on-demand like "Free up space" and "Always keep file on this device".
The "Status" column that shows the file-on-demand icons like Cloud & green checkmark in Details view is also missing.


I have just encountered this today for the first time. What does this icon brown box icon mean? I've tried searching and can't find any explanation.