If you hover over the left hand thumbnail - the correct thing highlights in the main screen.
But, if you then want to change the cut for example, as soon as you move off the thumbnails the whole design highlights again.
- Load a design with several thumbnail elements
- Hover over any thumbnail - correct thing highlights
- Click a thumbnail - still OK
- Go to change the cut settings in the popup panel - as soon as the mouse moves off the thumbnail the whole design reverts to highlight.
At this point you have no indication either on the thumbnail or on the main screen what item you are amending settings for.