I am also seeing this "Invalid Question" error message with the Survey input. I am going to replace w/ a different element. I'll replace the opening question with a 'Line' or 'Text' element. I need to figure out if I want to use 'Radio' or 'Select' (drop-down). I think 'Select' since it takes up less space... or reframe to have it be a "Select All That Apply" question....