Dandy Horse - having trouble getting the correct voltages

[sammy-arfie]

Hi all, so I just finished populating my Dandy Horse build from Lectric fx, and I am unable to get the correct voltages.

My -15V test point is reading around -7.5v, and TP1 is measuring at around -3.8v - half of what they should be.

As I was examining my board, I noticed that I had accidentally loaded a 1n4001 instead of a 1n4002. Swapped that out, with no change. I've changed the LT1054 for another one I had on hand, no change. I purchased these LT1054's on Digikey and used one in my Echo 600 build which is working great with no issues.

I'll try and get some pictures of the front and back of the PCB's next time I am in my workshop, but all components are oriented correctly. Besides the 1n4001, I cannot find any more mistakes or incorrect values.

Any help or advice would be appreciated.