I am trying to copy the Arduino schematic, but when laying out my PCB in Altium I have issues with the 3D view. As you can see from the picture below, the PCB appears without problems in the board planning and 2D layout views.
In the 3D view, the board does not appear at all, but the 3D footprints of each component show without issues. There seems to be some hidden option that toggles the board, but I can't find it. Does anyone know how to solve this issue?