**BUG** Concise problem statement: When laying out a 4 layer board, one plane VCC and the other plane GND, autoroute is assigning VCC to the bottom layer and assigns both capacitor terminals to GND. I just discovered this and am in the process of manually reassigning one terminal of caps to VCC, but this does not correct the problem of board fill assigning all flood areas to VCC in the bottom layer (should be GND). Steps to reproduce bug: 1. choose any 75hc, ahct, ks138 from parts list. Draw schematic assigning them. 2. export to new board 3. note how ratlines do not show for these devices, and no ratlines are shown. The part presently has the inputs unassigned, but the select outputs do not show the nets created in the schematic. Results: Planes are correctly assigned, outer layers are flood fill with GND, and Expected results: a 74-something138 DIP part that has correct footprint. I tried using footprint editor; it shows correctly in the window, but refuses to route. Browser:![enter image description here][1] [1]: /editor/20170714/596898c76c767.png