Source.keyboard in Kibana

Hello everyone!

Is the first time I use Kibana so I'm a bit lost. I'm trying to complete an assignment for university. I have to specify which sources are the tweets coming from. In logstash I configurated full_tweet and my APIs, but when I create my Pie chart, I have no idea how to show from where they are coming. As you can see in the picture below, it's not showing the name properly. Any help for a rookie, please?

Hey @DeerOnKeyboard, welcome to the discussion boards.

We'll need more information in order to help you. Can you provide the index mapping and a sample of the data set?

If you can also provide the steps you took to create your Pie chart, that would be helpful as well.

Thanks!