We are using Windows 10 2004 with driver .9.82. We have a PowerPoint presentation that has static images plus a video. When playing PowerPoint images work fine but video is just frozen. in all cases the video last 1:00 minute then goes to next slide If I only play PowerPoint on main screen works great with video and picture slides. When I have it playing on both main(Main plus Spacedesk) or just on spacedesk screen the pictures will advance but when video slide comes up it is frozen until the one minute time has passed then moves to the next slide.
I have test on a regular computer with no spacedesk and video works fine and the computer are running windows 10 with atom processors and built in video cards.
Test on multiple computers with spacedesk all do the same thing. main screen by itself works fine but once the spacedesk gets involved video will not play inside the slide.