Certain Live Forms action rules rely on pre-existing values that can be easily and unknowing broken by changing dropdown/checkbox/radio item names. Unless you are aware of the dependent rules, you have no way of knowing. My suggestion is to do one or both of the following.

In the form editor, provide a visual indicator that a rule is in force on a control, and a link to the rule (rules?) that they are used in (see attachment  - indicators.png). The indicator could also change color to alert of a broken logic state.

In the rule editor, change the color of the edit button(s) to indicates broken logic (see attachment - rules.png).