Game won't run on Windows PC
Here are a couple of things that may fix your issue:
- Open the Microsoft Store and check for any Downloads and Updates. You may need to update Game Services on the Microsoft Store, or there may be an update to Tetris Effect: Connected available. Sometimes the Xbox app doesn't pick up new updates, so please go to the Microsoft Store, click the "..." button > "Downloads and Updates" > Get Updates" in order to check for a new update.
- Log out of your Xbox account via the Xbox app and log back into it, then try the game again.
- Check this support article on Xbox Live Connectivity on Windows to see if it can assist with your issue. https://support.xbox.com/en-US/help/hardware-network/connect-network/server-connectivity-xbox-app-displays-blocked