Hi @sotiri, I was able to resolve this issue by changing the codec info, thank you very much!
My other video (the magic trick video that plays after you collect 3 coins) freezes in Safari. In this post (VideoStim stays static in Safari but not in other browsers), @d.govan suggests that allowing auto play in Safari fixes the issue. This works in Macbook (perfect!) but I cannot find the same option (to allow auto play) in Ipads and I think I looked everything under Settings. Do you have any suggestions for fixing this problem? I tried removing the audio from the video but it did not help either. Thank you!
Zeynep