We discovered a significant bug in Lectora 16.2 shortly after the release last week. Audio and video files with “Auto Start” selected in the Properties will cause other objects on the page to not show. We have removed the downloads for Lectora 16.2 from our website so that we can fix the problem. We have made it a high priority to fix and expect to release new downloads for Lectora 16.2 on Monday, barring any unforeseen issues. Please contact Trivantis Support with any questions: http://trivantis.com/contact-support/.