Can you please give the context of changes that we are talking about. Are we answering the questions and the response is not displayed or are we changing the KYC type in design time rule form and expecting the questions to be auto-refreshed in the case?
Assuming that there is a case with an Edit button. On click of edit, a modal dialog is launched which contains KYC questions. Answering any of the questions, auto refreshes the "Question"/"Questions" sections which are used to display questions automatically.
Is the assumption right? and this behaviour works fine OOTB. So if this isn't working please provide more details about the configuration on modal window.