I'm experiencing the same issue with iOS 17.4 on an iPhone 12 mini, and have had several reports from users of our platform, all from people running the 17.4 beta. Videos play fine, audio will not play. Tried debugging the browser but the console was empty. Affects all browsers. To replicate the issue: 1 - Open Safari, and make sure no other tabs are open. 2 - Go to the w3schools lesson on the audio play() function for example (https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_audio_play) 3 - Press 'Play audio'. No audio plays. To temporarily fix the problem: 4 - On a different tab go on Youtube/Dailymotion/whatever and play a video. Audio plays fine. 5 - Go back to the original tab and press 'Play audio'. The audio now plays.