Unlink-able Mindnode?

Mindnode should be supported out of the box, but I am having issues.

Version 2021.2.1 (305)

Intel Mac - MacOs Catalina 10.15.7

Screenshot 2021-06-08 at 23.58.09

Are you selecting a node before invoking Hook?

This works for me – same version of MindNode – macOS 11.4

Katie