The youtube video I have embedded and used to work automatically does not work anymore. Can you please help? I am teaching with this presentation: https://prezi.com/3o-46qbszrlj/edit/#111_200530434
@Tali_Gazit I tested your presentation and both videos seemed to be working well (in case of the second video it looks like it is not included in the path so you need to click on the video window in order to play it).
Please make sure there are no firewall or adblock settings blocking the embedded videos:
Also alternatively, you could try using a different browser and/or computer to see if the issue still persists.