Create Node not working on child nodes

[KSJM-61]

After initializing my tree object, I add root nodes programmatically via a ajax request and use the create_node function to insert the new nodes. This works fine, but when I try to add a new node (via create_node) to an existing root node, I do not get an error and receive true/success response, but the node does not display.

I loop through the initial data and if the condition is true (and it does execute!), I create the new node, receive success, but it does not display.

Maybe, I've missed something obvious, but at this point any help with this would be appreciated.