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Crashing into calibration sphere

During calibration the probe head is driving into the cal. sphere in-between tips. (Mistral, TP-20)
It has not done this before. Not sure what's changed. Other CMM ran fine (Global, TP-20).
We don't have a program, we are just using the measure button and calibrating all tips.
is there a way to add clearance moves to the calibration?