Hi there! I see you're experiencing a blank screen when using the Ru app on your Android WebKit device. Let's work together to figure out what's causing this and get it resolved.

To start, could you tell me a bit more about when the blank screen happens? For example:
- Is it right when you open the app, or does it happen during certain actions?
- Have you noticed if it happens only on Wi-Fi or on mobile data too?
- Have you recently updated the Ru app or your device?
- Have you tried restarting the app or your device already?

While you provide those details, here are some general steps you can try that often resolve blank screen issues:

1. Force Close and Reopen the App:
- Go to your device’s Settings > Apps > Ru > Force Stop.
- Then reopen the app to see if the screen loads properly.

2. Clear App Cache:
- Go to Settings > Apps > Ru > Storage > Clear Cache.
- This removes temporary files that could be causing display problems.

3. Check for App Updates:
- Open Google Play Store, search for Ru, and see if there’s an update available. Applying updates can fix bugs.

4. Restart Your Device:
- Sometimes a fresh start can resolve temporary glitches affecting graphics.

5. Check Network Connection:
- Make sure you have a stable Internet connection. Try switching between Wi-Fi and mobile data.

6. Reinstall the App:
- Uninstall Ru, then reinstall it from the Play Store to ensure a clean installation.

If you’ve tried these or if the issue occurs during specific actions (like playing videos or loading content), it could also be related to hardware acceleration or compatibility with your Android 10 version. In that case, I can guide you through adjusting some settings or checking for graphics-related options.

Could you let me know what you’ve tried so far and any other details about when the blank screen appears? That way, I can provide more targeted advice to fix it for you.