Hi! I understand you're having trouble with the plane not opening or launching in the Epic Plane Evolution app on your Android 10 device using the WebKit browser. Let's see what we can do to get you back in the air.

To clarify first: When you say the plane "not open," do you mean the plane doesn't appear at all, or are you unable to start or control the plane in the game? Also, is the app crashing, freezing, or stuck on loading when you try to use the plane?

Meanwhile, here are some steps we can try together:

1. Restart the App and Device
- Close the Epic Plane Evolution app completely.
- Restart your Android device to clear temporary memory issues.
- Open the app again and check if the plane appears and responds.

2. Clear App Cache and Data
Since you're on Android 10, go to:
- Settings > Apps > Epic Plane Evolution > Storage > Clear Cache.
- If that doesn't help, return and choose Clear Data (this may reset game progress, so back up if needed).
- Relaunch the app to see if the issue resolves.

3. Check for Updates
- Visit the Google Play Store or the app source to confirm you have the latest version.
- If not, update the app and try again.

4. Reinstall the App
- Uninstall Epic Plane Evolution fully.
- Reinstall it fresh from the official source.
Sometimes files can get corrupted and a fresh install can fix such bugs3.

5. Check Custom Planes or Mods
- If you have added custom planes or files, they could cause conflicts. Try removing such files. (On other platforms, deleting the 'custom aircraft' folder helped, so check if anything similar applies here)2.

6. Network Connection
- Ensure your internet connection is stable as the game sometimes requires connectivity to load assets properly.

If after these steps the plane still won't "open" or load, please let me know exactly what happens on your screen when you try to start flying or open the plane. A detailed description will help me guide you better.

Are you satisfied with the steps so far or should we dive deeper?