A Microsoft file hosting and synchronization service.
I do not know if this helps, but I also have had docs not being recalled from OneDrive when using Word 'Recent' docs. I started getting "Sorry, We couldn't find your file....." messages from the Word recent list.
What I do instead is go to File Explorer which is among your major apps and open it. Click on the OneDrive listing on the left-hand side of the window. That should give you a listing of all folders from OneDrive. Click on the folder which contains your documents. If your documents are saved there, you should be able to recall them to the desktop.
This worked for me, and I hope it helps you.