Hi there! I understand your ArriveCAN app is getting stuck at 12% loading on your Android device, running Android 10 with WebKit browser. Let’s work through this together.

First, could you please let me know if this happens every time you try to open the app? Also, have you tried restarting your device or clearing the app cache before?

In the meantime, here is a step-by-step approach that usually helps with this kind of loading issue:

1. Restart Your Device: Often a simple reboot can clear out temporary glitches in the system or network.

2. Clear ArriveCAN Cache:
- Go to your device Settings.
- Tap on Apps & notifications > See all apps > ArriveCAN.
- Tap on Storage & cache.
- Select Clear Cache. (Don’t select Clear Storage or Clear Data yet, as that may erase your saved info.)
Then try launching the app again.

3. Check Internet Connection: Ensure you have a stable internet connection, preferably Wi-Fi or a strong mobile data network.

4. Update the App: Make sure your ArriveCAN app is updated to the latest version via the Google Play Store.

If after these steps it still gets stuck at 12%, it might be related to data processing on their servers or a known bug. Some users reported similar issues when uploading vaccine proof or submitting their details, which caused the progress to freeze or show an error message1 2.

If you haven’t tried clearing data yet and you are okay with re-entering your submission details, you could try:
- Go back into the ArriveCAN app settings.
- Choose Clear Storage or Clear Data.
- Restart the app and re-enter your information fresh.

Let me know if any error messages appear or if something changes after these steps. I’m here to help! Are you satisfied with this initial solution, or would you like to dive deeper?