ROS-TCP-Connector C# Unity subscriber callback never fires

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Hi,

I am trying to test the viability of the Ros TCP Connector library for Unity to displaying large point clouds. I have created: Added the com.unity.robotics.ros-tcp-connector library

I have created a PointCloudSubscriber game object that takes in a PointCloud2 message type. i have configured by Ros1 connection through the Robotics tab, I am pointing to local host because I'm running the node locally. I feel reasonably comfortable that it is properly connecting to ROS, it errors out when I pick a bad IP or port. I've got logging messages for when the subscriber is created and when callbacks are executed and my callback is never triggered.

I am running the ROS Endpoint node.

Please let me know of any information I can provide beyond what I've said here.