The horizontal wire crosses right at the point where the vertical wire meets the pin of the fet. The software thinks that you intended for all three wires to be connected to the pin. Move the horizontal wire further away from the fet and this won't happen. You should probably delete the horizontal wire and re draw it to break the connection that may be in the netlist.Thanks for catching! I had deleted that junction once already. Not sure why it appears again. KiCAD did crash once, so that might be it.