Hi there! I understand that when you open a video in full screen on your device, the video player appears but the play button doesn't start the video. Could you please share a bit more with me? For example:
- Are you experiencing this issue with videos on a specific website or app?
- Does this happen for all videos or just certain ones?
- Have you noticed if the sound starts but video stays frozen, or nothing happens at all?
- Also, could you confirm the browser or app you are using on your Android 14 WebKit device?

This info will help me tailor the best steps for you. Meanwhile, I’ll start with some general troubleshooting we can try for playing videos in full screen on Android browsers.

Here’s a simple sequence we can follow:
1. Refresh the page or close and reopen the browser/app to clear temporary hiccups.
2. Clear the browser/app cache: Sometimes cached files interfere with playback. On Android, go to Settings > Apps > your browser/app > Storage > Clear Cache.
3. Check your network connection: A weak or unstable connection can prevent videos from loading properly. Try switching between Wi-Fi and mobile data to test.
4. Disable any browser extensions or plug-ins if you have them—these can sometimes conflict with video playback.
5. Restart your device: This can fix temporary glitches affecting video players or browser functionality.
6. Update your browser/app to the latest version from the Play Store for compatibility improvements and bug fixes.

If the video still won’t play when trying full screen after these, there might be specific settings related to hardware acceleration or permissions that can affect video playback. On some browsers, disabling hardware acceleration has helped resolve issues with videos not playing in full screen.

Would you like me to guide you through checking and disabling hardware acceleration on your browser? Also, are you using a default Android browser or something like Chrome, Firefox, or another? This will help me give precise instructions.

Let me know what you’ve tried so far or if there are any other symptoms you’ve noticed. Looking forward to helping you get this sorted out!