If you work with JDeveloper 12.1.3 and you work with code editor save actions the order of actions could be relevant for you. For an example you use lot of asterisk (*) imports and JDeveloper should edit the code to import only classes that you actually use in the code.
For an example you have entered following save actions and hit ok
After reopen the preference dialog you see that the order has be changed:
You run into Bug 19434883: ORDER OF CODE EDITOR SAVE ACTIONS ARE NOT SAVED CORRECTLY.
But no problem, there exist Patch 19434883: ORDER OF CODE EDITOR SAVE ACTIONS ARE NOT SAVED CORRECTLY.
Remember to install the patches for all of your developers!
Remember too, if you want to install more than one patch, there can be conflicts. Please test carefully, if all of your problems are solved for all patches after adding one more patch. Maybe you have to create a merge request in Oracle My Support.