I don't know what changed (I expect something on KoL's end), but choice adventure spoilers are no longer being displayed. I don't expect to get this fixed before going to sleep at least.
KOL changed. In order to decorate a choice adventure, mafia looks for "<form name=choiceform(\\d+)" (FORM_PATTERN in RequestEditorKit.java). Instead, I'm seeing "<form style='margin: 0px 0px 0px 0px;' name=choiceform1". Changing FORM_PATTERN to just "name=choiceform(\\d+)" seems to make choice spoilers work again.
The code that adds goal buttons needs to be changed as well (addGoalButton in ChoiceManager.java). I would not be surprised if other forms changed too. I'll keep my eyes open.