Deleting an item that won't delete?

I'm using the new Outlook (as an app) on my PC. There is one [draft] item in the delete folder that won't delete no matter what I do. It's an email from 2023. I've tried deleting it from the deleted folder, deleting it from the restore area, moving it to other folders and deleting it, sending it as an email. None has worked - it keeps reappearing in the deleted folder. At the same time, it does not appear online in the email provider for that account, nor does it appear in the desktop version of Outlook 2019. How can I get rid of it? Thank you in advance!