So much for the plug-in “Temporary Login Without Password”. I just created a user, credentials in the private section.
In Microsoft Edge… No matter what item I choose on the Theme Options menu, it goes to the same page and I cannot update any of the information.

I discovered this morning that it works OK in Chrome. So I do have a work-around, but would like to know if you can give me any reason why Edge is the culprit.

I do not see a way to attach a screenshot, but it is just the Theme Options menu on the top of the page when I log in as an Administrator.