Mongo 4.0 Changestream : Unable to whitelist all collections with kafka connect

name=prod-mongo-cs-4
connector.class=com.mongodb.kafka.connect.MongoSourceConnector
connection.uri=mongodb://xxxxxxxx:27018/
change.stream.full.document=updateLookup
database=XYZ
collection=
tasks.max=3
topic.prefix=cs
poll.max.batch.size=1000
poll.await.time.ms=5000

keeping collections as empty in above config should start giving change logs for all mongo db collections , but that does not happen. no change logs are coming to respective kafka topics with above config.
what is the right way of getting change logs for all collections inside a mongo database using Changstream