Hi there! I understand you're seeing a blank white screen when trying to use the Optimus Tracking app on your Windows 10 device with WebKit. Let's work through this together to get it fixed.

First, could you tell me a bit more about when this happens? For example, does the app show a white screen right after launching, or when trying to activate or load a tracker? Also, have you tried restarting the app or your device yet?

While I wait for your details, here are some general steps you can try that often resolve blank screen issues with apps like Optimus Tracking:

1. Restart the App and Device: Close the app completely, then restart your Windows device to clear any temporary glitches.

2. Clear App Cache and Data: Since you're using WebKit as a browser engine, clearing the browser cache and cookies might help if it's web-based. On Windows, you can do this within your browser settings.

3. Check Internet Connection: A slow or unstable network can cause the app screen not to load fully.

4. Update the App or Browser: Ensure your Optimus Tracking app or your browser is up to date, as older versions sometimes have compatibility issues.

5. Reinstall the App: If the white screen persists, uninstall the app and install the latest version freshly. This can fix corrupted cache or installation files.

6. Disable Hardware Acceleration: Sometimes, graphics compatibility issues can cause a blank screen. In your browser or app settings, try disabling hardware acceleration to see if this helps.

7. Check for System Graphics Drivers Update: Since blank screens sometimes relate to graphics driver issues on Windows, updating your GPU drivers might help.

If the issue still continues after these, it might be related to a specific app bug or a device-specific conflict. Let me know which steps you've tried, or if you need assistance with any of these. We'll take it from there!

Are you satisfied with this initial guidance so far?