I have created and simple react-app (npx create-react-app my-app) and copied the App.js & App.css code into it.
On clicking left-side font icon and then clicking to 'crop cluster,' the UI breaks and moves the cluster table to bottom. The image is attached as below.
![image](https://user-images.githubusercontent.com/13194613/69180956-15de1d80-0ac3-11ea-9093-436cd459783d.png)