Trouble with selecting users when creating a new channel

sendbird-uikit: 2.1.0
OS: MacOS Catalina
Problem occurs in both Chrome and Firefox

The SendBird chat is setup with App from sendbird-uikit to which I pass appId , userId and userListQuery . I’m using the same code shown in the documentation. I get the users from the SendBird API and they show up as expected. Upon clicking the checkbox next to any of the users in the list it behaves as if I am clicking only on the first user. Link to demo In the console a warning is showing saying Each child in a list should have a unique “key” prop. Check the render method of InviteMembers

Any ideas how to fix this problem? Thanks in advance!