Hi there! I understand you're experiencing a hang or freeze when the PackPoint app is validating a city. That must be preventing you from finalizing your travel packing list. Let me help you get this sorted out.

To start, could you tell me a bit more? For example:
- Are you using the PackPoint app on your Windows 10 device, or on a phone or tablet?
- Does the app freeze every time you try to enter any city, or only specific ones?
- Have you noticed if this happens when you're connected to a particular network or offline?
- Have you tried restarting the app or your device yet?

Meanwhile, here are some general steps to try that often resolve this type of issue:

1. Check your internet connection: Since the app validates city names possibly by querying an online database, ensure you have a stable internet connection.

2. Restart the app: Fully close PackPoint and reopen it—it sometimes clears temporary glitches.

3. Clear app cache or data: On some platforms, clearing the app cache can help with validation hangs. On Windows 10, this might involve uninstalling and reinstalling the app.

4. Update the app: Check if there's an update available for PackPoint; older versions might have bugs that are fixed in updates.

5. Try a different city: Test if the app hangs with any city or just one.

If you already tried some of these, just let me know which ones, and I can guide you through more advanced troubleshooting or explore any account or server-side issues.

Are you able to try these out? Also, do you prefer step-by-step guidance with each one?