Send to Kindle Not Working

I have a 10th gen basic kindle and recently I noticed that "Send to Kindle" is not working on it. I go to "Manage Content & Devices", select a book to send to my kindle but it never appears. The books in question do appear in the library on my Kindle and tapping on them initiates the download. They're just not auto downloading. I tried both the "Send to Kindle" web page and the email to kindle functionality (both of which worked for me before) with no luck. I even tried resetting my kindle. Has anyone been having similar issues?

UPDATE 04/03/2025 - I contacted Amazon and this was their reply

https://preview.redd.it/fxwsv3ru0nme1.png?width=1901&format=png&auto=webp&s=61d18c08707c0c70610a178a2216c09eebd99b13