TR-panel shouldn't cover the TR-arrows
I've the impression that the behavior of the TR panel is changed. The panel remains longer visible after clicking one of the TR arrows. Nice in certain circumstances. Not so nice if you want to set all TR arrows of a crossing and some of the arrows are covered by the panel.
Place the panel a bit further away from the crossing, making all TR arrows reachable.
The little triangle pointing to the selected arrow could be lengthened.