Hi @Lucy_24, welcome to the Roku Community!
Thanks for letting us know about the issue you've experienced connecting your Xbox Series S to your Hisense Roku TV and the steps you took to resolve it.
In this case, we recommend restarting your Roku device from the Settings menu by navigating to Home > Settings > System > Power > System restart (if you do not see a Power submenu, skip to the next step).
Please keep us posted on what you find out.
All the best,
Chel
Jecheal R.
Roku Community Moderator