New up studio does not autolevel with older Box

I have an old box, more than 5 years old. I just upgraded studio to 2.6.43.267.
The autolevel just runs through as if the switch is being operated, at each stage dropping the bed a bit lower until the nozzle detect which also drops the bed lower then pops up a dialog with the following “please insert nozzle detection card to calibrate nozzle height”.