Word 365 Read Aloud Natural Voices Not Available

Weird Login Error when click ReadAloudI've spent days scouring the Internet, desperately trying to find a way to add modern natural voices to Read Aloud in Word 365 on my Windows 11. There used to be a pleasant voice available for months, but it suddenly disappeared, leaving me with the awful robotic voices like David, Mark, and Zira. As a book author who heavily relies on the read aloud feature for proofreading, this is a significant issue for me.

To add to my frustration, I'm encountering a strange error message when I click on read aloud, stating that I need to log in to hear a voice, despite already being logged in. I've read numerous posts and articles on this topic, but unfortunately, I haven't found a solution anywhere.

It's frustrating to see that voices like Aria in Edge and Narrator are fantastic, but they don't appear in Word 365 Read Aloud, where I need them the most. Microsoft seems to make this basic function needlessly complex and elusive, and what is going on with the login message? I would greatly appreciate any assistance or guidance in resolving this matter. Thank you!