[Roadster]

Jim, could any of the following, the inside air temperature sensor, the outside air temperature sensor, the sun load sensor, the CCM are not functioning properly therefore giving a false reading to the HVAC programmer?

Or could it also be possible that the temperature door is opening in reverse than what it should be? The door should be in the closed position when you are running the AC, thus preventing air from blowing across the heater core. That would possibly be why you are getting hot air on a cold setting if that door is open. And that would also explain why you are getting cooler air on heat demands if the door is closed where it should be open.
Depending on what temps you are selecting for the defroster, I would suspect that the temp door would also have an effect on how cold or warm the air is coming out of the outlets.