i'm using eks and noticing that my worker nodes are being assigned public IP addresses even though my cluster was created with nodeAssociatePublicIpAddress: false. (typescript) I'm using my own node groups. It looks like the oldest few instances do not have IPs, but all the relatively recent ones (maybe 2 weeks?) have public IPs. Is there any other place I should be looking for a config that was switched other than the cluster config?