Light issue still not resolved

I previously posed a question about my Samsung French Door refer.
Your answer was to unplug each LED one at a time to see if one of the LED lights was the issue. I unplugged them one at a time and was unable to resolve the issue or finf the single light issue.

Previous question: The interior lights only work when you first plug the unit in. The after about 5 minutes they do not turn on when the door is opened. The light work in the middle drawer and the freezer 100% of the time, just not in the refer part. If I unplug and re-plug in the unit then the refer lights work for about 5 min then I open the door and the lights do not come on. .

addendum to above question. When the fridge is in plugged and then plugged back in to power the lights come on for about 5 minutes in the refer part. I did notice that when the door is closed and you look between the seal the lights stay on, they do not go out when the door is closed. On top of the right door there is a push switch, I assume this is the on off switch for the interior lights.

I did replace the PCB main board with a new one and this did not fix the lighting issue.

I am boggled by this issue. Please provide me some assistance if possible.
Thank you
Bret Feingld