Email content not showing on Apple Watch

Hello Jason1609,

Thank you for using Apple Support Communities. Based on your post, the Mail app shows blank white pages where content should show up. We'll do our best to assist.

Does this only happen when you receive the incoming notification or when you open up the Mail app to view these emails?

Have you tried to remove the Mail app from the Dock? If not, let's try that first: Use the Dock on your Apple Watch

Under section, 'How to remove an app from the Apple Watch Dock'.

Then restart the Apple Watch normally: How to restart your Apple Watch

After removing the app from the Dock and restarting it, test it out a bit.

Should it continue to occur, does it seem specific to an email account? Do you have any of these issues on the paired iPhone?

Wishing you well, take care.

This happens to me too on my Apple Watch series 7. I tried the suggested fix but it did not work. Notifications from the mail app which appear to have HTML content appear as blank white space where content is supposed to be. Tapping on the notification goes to the mail app and the email opens fine. But notifications in HTML still come in with blank white spaces. Restarting the Watch resolves the issue for a short while, and then blank white spaces come back after a few emails received in HTML. See pic for example.

This happens to me as well on all of my email accounts. I haven't tried the troubleshooting above yet.