I think my theory of the https: missing from the image URL may be correct.
I received an email notification from meta today, and it included an image:
As you can see, that image displayed perfectly in the iOS mail app.
Looking at the URL of the image itself, it DOES include https: at the start:
I realise that the image in that email is hosted on fastly rather than AWS, but why does meta put https in the image URL and my instance does not?
