Fusion Studio 9 not updating renders properly

I'm having this issue with Fusion 9 Studio where it updates the render/layout window fine when doing functions like color corrects....etc. Anytime i do something like an UNDO or a PASS_THROUGH though, the render window does not update at all. It only updates in these cases if I display a different node, then it updates...... What am I missing here? This worked fine for me in previous versions!!!!

Mark