We too are experiencing the same issue beginning around Sept 12 2022. See the attached image as an example of how the Customer Name is displaying their email and not their name as it previously did. This is causing us extra work of researching their name from their email address.
(And for what it's worth, I tried opening that email message in an incognito browser window and it did not resolve the issue. That is a very weird suggested fix in my educated opinion. This is a back-end engineering issue.)
I appreciate your attention to this issue. thanks
