I tried LibreOffice Impress but the same issue. Next page she put a youtube video but i can only see the thumbnail. The teacher inserted her own video on the 2nd page but there is only a black screen where the video supposed to be playing. Downloaded the newest version 4.1.7 and it's the same issue. It looks like there is a little speaker clipart is inserted in the page when there is audio should be playing. We click on slide show and it starts in full screen but the pages that have audio do not work. I tried to open it on two computers that both had 4.1.6 version of open office.
Teaches sent out power point presentation (*.pptx) that has audio and youtube videos linked. We are trying to home school our kid thanks to the coronavirus pandemic.
