Hello, I am trying to get the z axis to cold start properly and its acting weird.

I jog the Z axis to the tab, then I enter CS in (Enter Next Command). Once I do this, the Z axis will literally jump 1/4" inch up or down, its random when it does it. If I jog the Z axis anywhere but the tab position and enter CS, it will not move at all.

I can't get the z axis to stay at the tab when referencing home! Therefore I can't use the toolchanger because it won't line up!

Any help would be much appreciated!

Thank you,