Hello! I understand your Adobe Fresco color wheel is locked onto one color, and despite resetting, rebooting, and re-syncing, it remains stuck. Let's dig a bit deeper to get this fixed.

A few quick questions before we proceed:
1. Is this happening in the desktop app or in a browser-based Fresco session, considering your Windows WebKit environment?
2. Have you tried clearing your browser cache? Sometimes cached data can interfere with the color wheel functionality.
3. When you say "locked into one color," do you mean the color wheel shows only a single color and won’t allow selecting others, or it displays normally but the brush uses only one color?
4. Are you using any multicolor brushes or tools like the eyedropper before the issue started?

While waiting for your reply, here are some step-by-step suggestions you can try:

1. Clear Browser Cache and Restart
Since you are using WebKit on Windows, clearing browser cache often resolves UI glitches including color wheel stuck issues. Here's how to clear your browser cache:
- Open your browser settings.
- Find Privacy or History section.
- Choose "Clear browsing data" and select cache and cookies.
- Restart the browser and launch Fresco again to see if the color wheel resets.

2. Check Color Picker Settings
Sometimes the application might get stuck due to an accidental setting or tool mode (e.g., multicolor brush mode stuck). Try selecting a default single-color brush and then check the color wheel again.

3. Sign Out and Back Into Your Adobe Account
Signing out then signing back in can force sync and refresh your session, potentially freeing up stuck UI elements.

4. Test Another Document / Create New One
Open a new blank Fresco document. If the color wheel works there, the issue might be file-specific.

5. Review Brush Settings
If a multicolor brush was involved, try switching to a simple single color brush. Sometimes the color picker or brush type may lock the wheel to specific palettes.

If none of those steps help, occasionally reinstalling the app or using the desktop version instead of the web version (or vice versa) may be necessary.

I’m here to help—please let me know exactly how the color wheel behaves or if you’ve tried any of these. We’ll get your colors flowing again!

Are you satisfied with this suggested approach so far?