Unable to find the 'Selected' status of a TreeItem. #660

Hi, I've run into an issue by which I've gotten my tree and am able to traverse the branches and get to the node I need to operate on. I can click on the node and change it's selected value, but I am unable to read the value from the node. In Inspect I can see a SelectionItem.IsSelected property and it correctly reflects the status of the node but my TestStack.White control doesn't have the capability to read this value. Am I missing something?