Kafka Connect Cassandra: not creating the key schema for Avro format

[nics71]

I'm trying to create a Source Connector using the AvroConverter to move data from a Cassandra Table to a new topic.

The topic gets created and contains a value schema but the key schema is never set despite setting the key.converter

Here is a sample create table script :

create table if not exists <keyspace>.<table_name> ( onboarding_request_id text, datetime_message_sent bigint, status_code bigint, some_other_fields text, some_more_fields text, etc text, PRIMARY KEY (onboarding_request_id, datetime_message_sent, status_code)) WITH CLUSTERING ORDER BY (datetime_message_sent DESC, status_code ASC);