Problems with the new JSX transform

[sleepyArpan]

Hey folks, is there something I need to do for the new JSX transform to work in codesandbox? It works when I extract the code in my local machine but for some reason I am getting a run time error in the client. I have updated react,react-dom and react-scripts to the latest versions. The sandbox I am talking about: https://codesandbox.io/s/patient-shape-ldy8e?file=/src/App.js