Jetpack email shows wrong post author name and gravatar

Hello,

We saw an issue today where Jetpack email received for a recently published post showed:
– Wrong author name
– Wrong gravatar

However, click on Gravatar or name leads to the current author’s archive.

Both the correct author and wrong author are an admin on the site.

The admin user who has configured the plugin is different than both authors in question.

Any idea why this would happen?

Regards.