@UserSupport, **Via connectivity is seriously broken in 4 (and maybe more than 4) layer boards with planes.** **Referencing this projects:** [https://oshwlab.com/srivad/test-project](https://oshwlab.com/srivad/test-project) As these images show, 1. Vias that should be connected to the 3.3V plane are not 2. The GND vias are connected to both the GND and the 3.3V planes!   **Also note:** 3\. When routing and then pressing the 2 key a warning that changing layers to a plane layer is issued in the lower right hand corner\.     But, when routing and then pressing the 3 key no warning is issued. 4\. When first creating a new 4L PCB\, a spurious GND ratline appears to the lower right corner of the board outline: