iSCSI boot on RPi 4 (8GB) - 1.42

Hi!

I can get iSCSI boot to work on 1.24, but not 1.42. I create the same configuration, but nothing happens (boots) on 1.42.

Did a search in the historic issues, and found a reference that it was disabled in 1.23? and re-enabled in 1.24.
Was it removed in versions after 1.24?

John