Hey. I’m sending you the entire source. It’s a plugin, though.
If you spawn a KIRCActor, the KIRC Actor Component (or the actor itself) has the ‘Messager Handlers’ property which is causing the issue.
Just an update, I was checking it out again earlier and I could list the 3-4 handlers I had created to test the plugin in the dropdown select thing, even after restarting the editor, but they still refused to add. The whole thing is very broken.