Broken UI

[mschenk]

Creating a new ticket for the unfixed issues remaining from closed ticket #352 by @RetroSunstar

There seems to be an issue with the addition of the new UI Editor for configuring labels

In the UI Editor:

Once you add a label, you can't remove it, there's no delete button

You can't add label definitions, they won't save... unless you add two labels, then it kind of works?

You can't add label definitions or remove labels themselves in the UI Editor.