You may find that Engage interactions do not load during playback on a Web server or LMS if you have compression enabled on your hosting server. The loading circle spins, but the content never loads. (In some cases, the interaction may play properly if you refresh the browser or close and reopen the content.)
If you're not sure whether your server is compressing files or not, enter the URL for your presentation into this compression tester to find out.
To avoid this behavior, disable (turn off) compression on the hosting server or exempt XML files from being compressed.