Getting incorrect lambda values in Closed Loop?

[D.Mon]

Hello there,

I have a 2013 Road King with a Power Vision on it.
I have an open air cleaner, Vance & Hines Monster Ovals (EC) and fullsac DX pipes on it.
For tuning the X-pipes I took those with the additional 18mm ports in them and the Auto Tune Pro kit for the Power Vision.

I have a Closed Loop range in my AFR table and with the widebands of the AT Pro Kit I wanted to check how well the ECM stays in the values I set.
I did set "Closed Loop Lambda Range" to 0,960 - 1,013.
The AFR values in the CL range is set to 0,966 (I have also tried 0,982)

Then I did some Datalog runs with logging enabled.

I excepted the reading of the lambdas to be around 0,966 but actually I got almost perfectly 1,0.
I also did some statistic calculations in Excel and found:
average lambda (front/rear): 1,00/1,02
max. lamda: 1,03/1,04
min. lambda: 0,98/0,98
standard deviation: 0,01/0,01

To me it looks as if the ECM does not care what values are in the CL areas of the AFR table but always tunes to lambda=1

How can this be?
Am I missing something?

D.Mon