Adobe Flash missing content setback

Hi I'm using adobe flash v19.0.0.245 in my Edge (ActiveX) Browser on OS Windows 10. As I am currently doing an online course at Alison.com in which some of the content makes use of adobe flash for animation (Video-Text-Sound) but during that process only about three quarter (3/4) of the content is displayed. To try and make things more clear a quarter of the page that should be displayed is Not There or there is not enough space to fit the content in the window used for displaying adobe content.