I've seen sparse references to a bug that can cause this.
If the system has a digital embedded entitlement key you should be able to activate it with the generic home license and the digital key should activate.
Run the command: slmgr /dlv to confirm it does not show home
If it does show education, you can try the following key to downgrade the system to home
YTMG3-N6DKC-DKB77-7M9GH-8HVX7
I recently encountered the same issue where a Microsoft Store game was displaying intrusive ads. It's really frustrating, especially when you're in the middle of gameplay. I found a potential solution that may help: you can try changing your game settings or checking for updates. Or read this
top article to try yourself in another exciting game. This site provides some useful tips and tricks for managing advertising in games. It might be worth checking while you wait for the official fix. Hope this helps!