Hi there! I understand that in the Rulet TV app, the image is either not visible or flickering/jumping around on your Android 13 device using WebKit browser. Let's see if we can get that fixed together.

To start, can you tell me a bit more about when this happens? For example:
- Does the issue happen all the time or only sometimes?
- Is it with all videos/channels or specific ones?
- Are you using Wi-Fi or mobile data? Is your internet connection stable?
- Have you tried restarting the app or your device already?

Meanwhile, here are some initial steps that often help with video display problems:

1. Clear the app cache and data:
- Go to Settings > Apps > Rulet TV > Storage.
- Tap on "Clear Cache" and then "Clear Data".
- Restart the app and check if the video plays properly.

2. Check your internet connection:
- Make sure you have a strong and stable connection.
- Try switching between Wi-Fi and mobile data to compare.

3. Update the app:
- Go to the Google Play Store and verify if there is an update for Rulet TV.
- If available, install the latest version as this can include important fixes.

4. Restart your device:
- Sometimes a simple restart clears temporary glitches affecting video playback.

If you have already tried these, please let me know, and we can dive deeper into settings or possible compatibility issues. Also, confirm if the problem shows up within other video apps or only Rulet TV.

Looking forward to your reply! Are you satisfied with this starting approach?