There is an issue with videos not loading on some older iOS 15 or iOS 16 devices. This should fix the issue on Safari:
- Go to Settings
- Click on Safari
- Scroll down to Advanced
- Scroll to Experimental Features
- Turn off GPU Process: Media and GPU Process: Capture (or GPU Process: Canvas Rendering and GPU Process: DOM Rendering depending on the iOS version)
- Close the Safari App and open it again
If this fails, try disabling any Safari extension and restarting your phone and/or clearing your browser cache (export your save first as the save system uses the browser cache). More info: https://developer.apple.com/forums/thread/688146