Frank - The issue occurs with all files and folders. There seems to be no connection between the desktop version and the cloud version. I do not get a related error message and the Microsoft Upload Center is empty. I've attached the requested screenshots but am working on a Mac so cannot use the instructions you provided to attach the Log. I've provided what I *think* you need to investigate, but please let me know how to navigate to the logs via mac if this isn't correct.
The OneDrive for Business icon at the top of my screen (in the toolbar) has a red X through it, and when I click on it I am told that there are "2 problems with your OneDrive for Business." I "View Details" and see that two other files - completely unrelated to the issue of transferring files from the desktop version to the cloud version - are listed as problem files. Clicking on Preferences from the toolbar icon gives me very limited options.
Thank you for your help.
