If I deploy the app and start it, it will run, but performance is bad (20FPS-ish). I've read that setting the app to game mode (rather than app) should help, but when I launch it, it will display a white screen with a gray box with an X in it. After about a minute, it prompts me to 'wait a full minute and retry'. This is an original Xbox One running the February 2019 system update. The app is built as release (because the framerates in debug mode are appaling).