U2724DE, changing color temperature 20x over 1 minute

I have bought U2724DE monitor with automatic brightness and automatic color temperature features. The problem is the monitor start to change from warm red color to cold blue color 20x times over one minute. This happens when there is a little bit decrease of lightning in the room. Especially in the morning or during sunset. But also when the sun goes behind a cloud. The monitor acts as if it is on the edge between warm and cold and constantly goes there and back. Usually waits 1 or 2 seconds and goes warm, waits 1 or 2 seconds and goes blue. Then a pauze 5 seconds. And then again changing. Then few hours is okay. And then again when the light changes a bit.

I specifically went for DELL to get a quality monitor and this feature looks as if it was programmed by a child. Why is there no time limit after one change? Do a change and then wait at least a minute before going for another no? I specifically went for this type to get the EYE COMFORT but this is the aboslute opposite. It is disrupting me in my work. 

It is connect to PC via DisplayPort. Sitting next to a window from a side. The sensor on the top is not covered by anything, no webcam, no furniture above. 

Does not happen during a sunny day or during a night. But specifically when the light changes even slightly. Then it acts as if it didnt know what to do, whether to go cold or warm. 

Updated the firmare to M3T102 version from M3T101. 
Did the self-diagnostic but this feature is not enabled there. 
Auto brightness seems okay. 
Windows. No other monitor connected, just this one.
NVIDIA GeForce GTX 1050.
Color preset is set to STANDARD and the auto brightness range is set to MID.

What can I do?