When I add a step, on top of the steps, existing steps results changed.
step1 aaa : passed
step2 bbb : failed
step3 ccc : <not yet>
then added ddd as step1, and results changed.
step1 ddd : passed
step2 aaa : failed
step3 bbb : <not yet>
step4 ccc : <not yet>
This is very troublesome.