I first noticed it when Psychonauts was free the other day on Xbox One but not on 360
Now if you go to your ready to install list, you’ll see games repeated
And now there are formerly delisted games showing up on the store.
Enslaved was once delisted in Australia. Now it’s back.
https://marketplace.xbox.com/en-au/Product/Enslaved/66acd000-77fe-1000-9115-d8024e4d07f1