Runtime field data in Kibana Document table

Hi,
I've created some runtime fields which show data in Discover, data table etc.
But when i use those runtime fields inside document table, they dont show any data, instead simply show '-' only.
What could be the reason.
Using document table

Welcome, @Cinu,

You may want to double check your field mappings. You can do this by running the following command in the dev tools console:

GET /index_name/_mapping