When upgrading from 1.462 to other versions (tried 1.464 & 1.467) all images in the screen are invalid/broken when the user is not logged in. Once the user is logged in, everything works.
I rolled back to 1.462 and everything works.
This makes the UI barely usable when not logged in. Also, there's no broken image link for the login link, so we have to guess where it is.