From the [react 16.5.0 release notes](https://github.com/facebook/react/releases/tag/v16.5.0) : "Warn when this.state is initialized to props [react issue 11658](https://github.com/facebook/react/issues/11658)" react-debounce-render does just that, and thus triggers the newly added warning every time :-)