What has happened to MS Sudoku?! Ads make is unplayable!!!

Yes, as Treasure Hunt uses the same system / engine, it suffers from the same problems.

Sudoku btw has another issue which might have the same reason:

The ads are misplaced to the left by about the same amount of screen space as is missing to the right in minesweeper.

This results in the ads always being placed above the play board making it unplayable as well.

Strange behaviour, but I would advise posting this in the Microsoft Casual games site here https://community.microsoftcasualgames.com/ or you can talk to one of their representatives by selecting the option on the site.

So what happens when MS shuts down the service that supports Xbox One? Yep, everyone is stuck with a huge paper weight. All past consoles are still playable right now but MS can make the Xbox One unplayable at any time.

Ok, I tried to perform a clean boot and I got the problem to change. Sudoku would now crash as it starts (the Sudoku window will appear and then disappear). I tried to reset and then to uninstall/reinstall Sudoku and now I am back to it loading but when
I try to play any game, I get the end screen of the ad and when I close the ad, I go back to the selection screen. Is there a log file somewhere that will tell me what is going on?

I am manually checking for updates and windows has no updates available/pending. I have exited the clean boot (after Sudoku was crashing) and I am ready to try the next troubleshooting step.

I'm having the same problem. Ads will sometimes freeze at the end. This has been an intermittent but ongoing problem for the past month, making Microsoft Solitaire Collection virtually unplayable as it makes the overall experience very frustrating.