Port LED with common cathode SuperCIC woes

[DoctorHeadlock]

Hi all

So I am currently working on a HW2 internal install in a SNES and everything is working great save for the port status LEDs. I have a SuperCIC installed in my console and that has its own two-colour LED that changes based on the console region to which it is currently set. The problem is, I want to use that same LED as the port 1 status indicator, and I have tried wiring it up as per the schematic - using an N-channel MOSFET with the source connected to ground, the drain connected to the common cathode of the LED and the gate connected to pin 2 of the ESP32. The anodes remain connected to their respective red and green pads on the SuperCIC. With this setup, the LED does indeed pulse when pairing and go solid when connected, but it now continuously cycles through all three colours and the ESP32 now seems to ignore all inputs from the controller despite being paired. Anyone have any ideas how I can implement this? TIA.