I'm not sure if this is a bug or a change in user interaction with the GUI, but the connections between the schematic wiring and components seems to be inconsistent in generating the ratlines or netlists for the PCB. I've attached a screen shot showing the components connected in the schematic but isolated on the PCB.
![Missing ratlines][1]
![Correlated components][2]
[1]: /editor/20180118/5a5f9f870c1f6.PNG
[2]: /editor/20180118/5a5f9f937d983.PNG