This is why I said do a quick test before building. That is due to the red taking all the power and not enough left for the green, as I said LEDs don't share very well. I don't understand why only in one direction, double/triple check your wiring, is it what it should be?. Show me a quick diagram of what you have actually used. It is a bit hard to diagnose from your photos.
As I have said several times your resistors are way too small at 510 ohms and wasting too much power and not helping the situation. I have run LEDs on 12 volt at 110K for green and 10K for red but a little bit different wiring, that is 200 times higher and a correspondingly smaller current at micro amps. The ones in the photos I uploaded from the club layout are doing that.
Tony
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