K8028 Almost Working, but not can't leave function selection

After building the K8028, I connected a 220V 40W old fashioned bulb, and plugged in the rig.

It goes through the self test, then shows the selected function by blinking the selected function 15 times and then LD4 (green) gets lit up. At this point the load is off and only LD4 is on. Pressing the button gives me a dim blink on LD5. Then the selected function pattern blinks on LD1-4. If I click again it starts changing the selected function. However I can’t seem to actually get the dimmer to do anything with the load. I only end up back in the function select feature. I’ve tried both the on-board button and an external button on SK3, but the board reacts exactly the same.

What step am I missing? what could be wrong?

TLDR; Everything looks fine on the LEDs, but every button press only starts the function selection menu…