Title: H5P Single Choice Set Blank Page — Button Undefined Error Hello Lumi Support Team, I am experiencing a blank white page when opening my published H5P Single Choice Set activity in Chrome. The activity can be created in Lumi Cloud, but the published link does not render. The same issue occurs across different devices. Chrome Console reports: Uncaught TypeError: Cannot read properties of undefined (reading 'Button') The stack trace references: H5P.Question version 1.5.15 H5P.SingleChoiceSet version 1.11.88 SingleChoiceSet.addButtons() Question.self.addButton() Could you please investigate whether this is caused by a missing JavaScript dependency or a compatibility issue between the installed H5P libraries? I need to use these interactive activities in an educational website, so I would appreciate guidance on how to fix the issue without recreating all the content. Thank you.