Per your recommendation, I have entered a problem report on the Feedback Hub.
Others following this thread, please follow the link to upvote this problem report!
To the Microsoft folks, thanks for your help in attempting to solve this problem. It is discouraging, however, after working through this issue for several days, to have it simply dumped into the "black hole" of the Feedback Hub rather than escalated for further investigation -- especially for current Microsoft hardware products.