I've got no clue what I did wrong: I tried to do some changes in existing pyui files. Some of them include buttons with images selected from the builtin icon repository. When I try to edit any of the buttons the ui editor shows an empty box and when I click on "image" I get an empty icon list. However, if I add new a button I can choose from the normal list.
The app works fine by the way, meaning it's showing all the buttons.
Can anybody help? Thanks a lot!