If you hit "Rand" and then hit "Apply", then the ability was updated and saved correctly. If you hit "Load", then you will just see the defaults again. Currently, there is no way to see current ability/potential.
The game developers requested that hidden attributes are not made visible. This is a difficult situation because I personally prefer attributes to be visible (like in most sports management games). This was one of my main reasons for writing the Editor (and definitely the number 1 reason for writing the Scout).
Since you helped out a lot with the 2018 Editor, I would be happy to send you an unlocked Editor and Scout privately as long as they are never uploaded publicly (and as long as you don't upload any information about ability and potential levels). I want to give people the tools they want, but I also want to respect the requests of the game's developers. More generally, I will try to create a trust-based system so I can share unlocked tools with more people (e.g. print their PlanetCricket user name in the editor, so if it is leaked online, then they will be excluded from future releases). I expect 99% of people to just download the editor without reading the forum, so this should work for a small number of people.
When we get closer to the release of CC 2021, I will probably release an unlocked editor publicly. In my opinion, this helps prolong enjoyment of the game after you have been playing for a while.