Showing "Invalid Answer - You must complete the question before submitting" in Storyline 3 By Uttam Biswas Hello Guys, I am getting this issue while I publishing my course for HTML5 with Flash fallback with SL3. Initally it was designed by SL1 and worked fine there. Actually this is happening for all options of HTML5. Also story file is not even opened in google chrome. it shows an error like below: It is opening in other browser (firefox) correctly but it shows below error after submitting all quiz. Can you please see my story file on the attachment and update me where is the problem. It would be really helpful if someone please help me. I have gone through couple of threads but no luck.