Got an issue with my daily driver. Its an sy territory.
Don't usually have anyone in the back of the car but did today. So went put window down and no go.
When they got in they tried the door switch and it worked fine. I tried from the drivers master switch but no go.

Swapped the 4 switch master to a new known working unit and same no go from drivers door and fine from back passenger door switch.

Now this is the weird but 2 hrs later when parked under carport at home it was fine again at drivers door.

Car was parked in the sun all morning prior, when the issue occured.

Any ideas??