KiCad: why does the layer preview not display all my layers?

This could be caused by using non standard KiCad layer names. If this is the case, renaming your layers back to the default and reuploading to CircuitHub should fix the problem.

A list of default layer names follow:

Solder paste:

• f.paste (front/top)
• b.paste (back/bottom)

Silkscreen:

• f.silks (front/top)
• b.silks (back/bottom)

Soldermask:

• f.mask (front/top)
• b.mask (back/bottom)

Copper:

• f.cu (top/front copper)
• in1.cu (inner copper)
• in2.cu
• in3.cu
• in4.cu
• in5.cu
• in6.cu
• in7.cu
• in8.cu
• in9.cu
• in10.cu
• in11.cu
• in12.cu
• in13.cu
• in14.cu
• in15.cu
• in16.cu
• b.cu (back/bottom copper)
• power or power.cu (power plane)
• ground or ground.cu (ground plane)