What I have discovered is that the initial pop up message that appears when you upload the gerbers does not indicate the reason the files don’t qualify for DKRed. However, if you continue on to the PCB Builder, then the reasons are listed in the PCB Build Manufacturer Pricing column on the right hand side. For some reason the system believes that my design needs four layers, but gives me a quote if I change it to 2 layers (for which it is actually designed).
