Hi! I understand you're having trouble progressing past level 350 in Triple Tile despite clearing the board. Let's work through this together.

First, could you tell me if the game is showing any error messages or freezing when you try to move past level 350? Also, have you tried restarting the app or your device?

Meanwhile, here are some troubleshooting steps you can try:

1. Restart the app: Close Triple Tile completely on your Windows device and reopen it to see if the level progress updates.

2. Check for updates: Ensure your game is updated to the latest version. Sometimes issues like this are fixed in updates.

3. Clear cache (if applicable): On Windows, some apps cache data that could cause glitches. Although Triple Tile is primarily mobile, if you’re playing on a web version in WebKit, try clearing your browser cache or restarting the browser.

4. Reinstall the game: If possible, uninstall and reinstall Triple Tile to reset any corrupted files.

5. Check if power-ups are needed: Some levels require you to use power-ups or specific moves, even if the board appears cleared. This might be a deliberate game design at higher levels.

If none of these help, it's possible this level has a known bug or requires extra steps to complete as some users report difficulty on certain higher levels2.

Would you be comfortable trying these steps, or do you need help with any of them? Also, please let me know if anything unusual happens when you clear the board on level 350.