I noticed some lage changes in Katapult (was CanBoot) this weekend. So retested with
Klipper Version: v0.11.0-257-ged66982b
Katapult Configuration v0.0.1-57-gabd1545
The full details are at:
https://klipper.discourse.group/t/can-bus-katapult-and-klipper-on-a-voron-0/9829
It now works, Thank you.