Windows Server 2019 / Windows Server Insider 2019 isos (English or en-us) are broken

On the Microsoft website as of 30-45 minutes ago.

I get this error on the Windows Server 2019 (gui) iso: https://github.com/pbatard/rufus/issues/1129 which means it is corrupt.

On the Windows Server 2019 insider (no gui) it doesn't even show any errors, it just exits.

Known bug?