Hi Larry Rowe
Great to know that it works now and thanks for sharing the update here.
By the way, since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others.". and according to the scenario introduced here: Answering your own questions on Microsoft Q&A, I would make a brief summary of this thread:
[Why does Microsoft Graph return 404 Not Found on my valid query?]
Issue Symptom:
Microsoft Graph return 404 error "item not found" when request me/drive/sharedWithMe
endpoint in Graph Explorer.
Current status:
Issue solved by consenting individually to required permissions.
You could click the "Accept Answer" button for this summary to close this thread, and this can make it easier for other community member's to see the useful information when reading this thread. Thanks for your understanding!