Coincidentally I had a problem with Save & Quit earlier today. The game client lost my saved game.
I was 2 holes into the VUSO Qualifier and my meter got jumpy. I decided to restart my browser and did a Save & Quit.
I got to the correct Game Saved window: "Your game is now saved and it is safe to close your browser window". So I closed the browser, restarted the Game Client, & logged in. I did not clear caches.
I saw the Saved Game Status window, then a WGT ad popped up. When I closed the ad the game returned me to the main game client window. When I checked the Qualifier tournament it said Play Again. It had lost my saved game.
Problem report was submitted this morning when it occurred Attn: WGTAdmin2.
I tried to duplicate it just now. No ad popped up and game is saved. So maybe the ad somehow messes the sequence up?