Hello! I understand your Segway Mobility app keeps crashing on your Windows device using WebKit. Let's get to the bottom of this.

First, to better assist you, could you please tell me:
- When exactly does the app crash? For example, does it crash on launching, during use, or when connecting to your scooter?
- Have you recently updated the app or your device OS?
- Have you tried any steps already, like restarting the app or device?

In the meantime, here are some general steps that often help with app crashes:

1. Restart your device: Sometimes a simple reboot clears temporary glitches.

2. Clear the app cache and data: Since you're on Windows with WebKit browser, if you're using a web version, try clearing your browser cache and cookies. If it's a desktop app, look for settings to clear cache, or uninstall/reinstall the app.

3. Check for app updates: Make sure you have the latest Segway Mobility app version installed, as older versions may have bugs causing crashes.

4. Review app permissions: Sometimes lacking permissions (like location or Bluetooth) can cause instability. Ensure the app has all necessary permissions enabled.

5. Network connection: Verify you have a stable internet connection, as the app might require internet for some functions.

If these do not help, sometimes reports show that recent updates have caused issues on certain devices, so let's also consider:

- If the app crashes after a recent update, reverting to an earlier version may help temporarily until the fix is released.

- Checking if other users have similar problems via forums or support channels, just to confirm if it's a wider issue.

Would you like me to guide you through clearing browser cache or checking permissions next? Also, please share if you experience any error messages when the app crashes. This information can help me tailor the solution better for you.