Apple review requirement for firstName and lastName

I had originally solved this problem with the information here LastName FirstName in token with apple-sign-in.

The name is being returned as an email address, however the apple documentation states we should be able to receive firstName and lastName. The scopes I have requested are: “openid profile name email offline_access”

When tested again yesterday, the fields are no longer being filled, they are undefined. I have a support ticket that I reopened (00872758) - we are desperate for an answer. Last time it took a week to get a response.

I tried transitioning the rule across to an action, but still no success. I reiterate, this was working last week. What am I missing?