Now the C1ASS servos are working fine.
However at the end of the scripts sometimes it changes the DC force (e.g. C1:SUS-ITMX_PIT_COMM and so on) by a wrong amount.
So for this bug, it misaligns the suspensions a lot. I will take a look at the script tomorrow.
However then I found the ASS_Xarm servo was not healthy.