Hi there! I understand you're having trouble with the Credit One Bank mobile app rarely working. Let's get to the bottom of this together.

To start, could you tell me a bit more about the problem? For example:
- Are you having trouble signing in, loading the app, or making payments?
- Does the app crash, freeze, or show any error messages?
- Have you noticed if the app asks you to update even if you already have the latest version?
- Are you using Wi-Fi or mobile data when the issue happens?

Meanwhile, here are some basic steps you can try to improve the app’s performance on your Windows device using WebKit:

1. Check for App Updates: Ensure you have the latest version of the Credit One Bank app installed. Sometimes older versions cause functionality issues. Since you're on a Windows system, confirm your app or browser is fully updated.

2. Clear Cache and Cookies: If you access the app via a browser, clearing cache and cookies may help. For WebKit-based browsers, you can do this in the browser settings under Privacy or History.

3. Restart Your Device: A simple reboot can clear temporary glitches affecting the app.

4. Check Network Connection: Make sure your internet connection is stable. Try switching between Wi-Fi and mobile data to see if the issue persists.

5. Enable JavaScript: Since the app relies on full browser functionality, ensure JavaScript is enabled in your browser settings to avoid loading issues.

If you've already tried all these or your app still rarely works, we can look deeper into your account status or potential server issues. Sometimes real-time outages affect service accessibility, so I can help check on that as well.

Would you like to proceed with these steps, or do you want to share more details about the issue you're facing? That way, I can tailor the solution more precisely for you.