No toolbar for smart folder

Hi there,
Since today I’m running the latest version of TF but still I’m having the same problems with creating smart folders. When I hit the button to create a smart folder, TF opens a new window. So far so good but I cannot see the typical toolbar where I can add the rules for the folder. Sometimes when I switch to full screen mode I can see the bar. But this only works occasionally.
For further explanations I’m having an iMac retina 5k with Yosemite running.
Thanks for useful feedback.