I am adding a new list from the Chinese Breeze serie and run in to one words having some missing definitions. When I try to add them they seems to not be saved, they revert back to the official one. Can't see them in my custom definitions either. A bug or am I doing something wrong here? The word is the very frequent character 老 that usually is about something is "old" but it can also be about "all the time", "always" etc. In this book it is used for something that is not always so I need to add that definition. I try to do this while editing my list.

You can't edit definitions while editing the list. You'll need to save the list, then click the words in the saved list to access and change the definitions.

I have it on my list to add links to the list editor so you can access the word popups.