I noticed if I have already built actions and rules but go back later to format the names of the actions for better organization, the actions linked into the existing rules retain the old names and stop working. Its not really a huge deal but with some more complex rules/actions it can be annoying having to remember to go back into the rule remove the action save go back into rule add the action and then retype any constraints that might have been in the action.
Ideally I know most people will not be going back through renaming actions but it is still an annoying behavior.