**BUG** Concise problem statement: When measuring between 2 entities (M-measure tool) the tool hangs without producing a measurement display after clicking on 2nd entity. Steps to reproduce bug: 1. create new pcb, place 4 pads and/or vias, join any which way with tracks top and/or bottom layers 2. using measure tool ('M') measure between any 2 entities by clicking directly ON the 2 entities 3. Results: no measurement result is displayed - if you click on the grid but not on the 2nd entity, a measurement result is displayed Expected results: should work as advertised Browser: Chrome 61.0.3163.100 (Official Build) (64-bit)