Probably bitrate or some other unsupported tweak in it
Discussion
iOS is so damn picky.
Well, there are standards that people agreed on, so it just enforces them I guess
Just seems weird it works everywhere but iOS. I wonder why the difference. I just checked videos I know work and the audio format is the same. Mysterious. Unless my videos are all silent too 🤔
iOS optimizes for low power, so this maybe why they restrict codecs to what can be played on HW