I have had UCCNC (AXBB-E) for several years with no problems at all. The last week or so when I press the touch probe button to zero the Z on the touch probe the spindle/bit does not stop and bounce back up, it wants to keep going and bury itself in the touch probe. I am sure have inadvertedly changed a setting but can't figure out which one. Please help.

On the diagnostics page it says the probe is working when I touch it to the bit.