Open video on iOS no sound

I have set up the Open video player and it plays all videos quite fine on Android. But for iOS the videos open without sound. Anyone having similar experiences or solutions?

Lissuin

Out of the iOS phones we tested one of them could not play the videos with any sound. We were never sure why that was. The other issue that we came into is that to play the videos you have to allow microphone access, which is weird and Apple does not allow for that to be the case because you don’t need the microphone for anything

Thanks Steven, it helps to know it’s not only for myself. I will continue try around more with webview and finding solutions for both iOS and Android.