I am trying to update ACL’s and create a topic. My security group rules and keys seem ok, but still getting the following when running ./kafka-acls.sh --add --allow-principal "User:CN=admin" --operation All --cluster --bootstrap-server "{Bootstrap URls from AWS}" --command-config admin.properties

I’m standing up a Kafka cluster using AWS MSK. I’m using cross account access so have defined Cluster Policy (Resource) and Identity policy. I’m going to have statements in the Cluster Policy for every principal that will be producing and consuming. I haven’t found any docs on the upper limit of this Cluster Policy. I’ve tried to find it by just adding more and more statements to the policy. I’m up to 14k and haven’t hit an upper boundary. Does anybody happen to know what the upper boundary might be?