REW newbie trying to understand if some mistake here

[8rnity]

Hello to all, finally I approched to this forum that overall I think is the best for Audio discussions.
In all these years I was member of many local language AV forums of course, and meet so many people and had so many discussions, but none offer a dedicated section about REW as AudioNirvana does.
Now, I read all manual, followed all tutorials, bought an UMIK-1 and started to test.

The reason to start approching to REW was I heard a difference between Dali Oberon L and R channel.
I swapped the two speakers and hey! the difference swapped as well. Was for sure a speaker problem. I explain the situation.

My set-up is asymmetrical. Room is rectangular but at the left I have a solid wall, at the right an open space. Yes, I have my setup on the left wall of the room. Can't do it different, for sure.
I can post my pictures here but for sure I can't change now the position. I heard the left speaker more strong. Ah! what a discover! It's closest to wall!
But when I swapped? I heard sound swapped.

My brain followed the speaker? Can't be.
So I bought an UMIK, I installed REW. I checked volumes, I used Bluetooth sent to my Amp, Audiolab 600A, to sweep.
And my microphone in front, pointed to the R speaker, between tweeter and middles, parallel, at 1 meter of distance: (1/6 smooth)

Then I swapped the speakers. And this are overlap results :

The lesson I learnt: don't trust your ears. Your brain lies to you.

Fase 2: take measure of listen point. So I placed my microphone on a tripod, on the sofa, at the heigh of my ears, pointed to the center of the space between front speakers.
These are the results:

Violet is the L speaker, that close to the wall, the green is the R speaker. Now. Are these results reilables?
I don't want to ask here the first day (however suggests are welcome of course) I want to understand and study, but overall are these results that exclude mistakes?
Ok, I post the graph without smooth.. I'm in dubt, maybe something wrong with measure.. well all that I ask is: Am I in the right way or I'm doing some big mistake?

Meh, crazy graph.. at the moment I can't understand what means.
Thank you very much and nice to meet you!

 

[DanDan]

Hi Welcome, Bienvenido..... Please fill in your profile so we know who you are really and importantly where? Graphs without smoothing look crazy. Your testing seems fine. Our ears may not be symmetrical. Even visually, if I look in a mirror, one ear sticks out more...... Also they may not have equal sensitivity, or one may be damaged. Or Wax!

 

[UKSPAWN]

looks as expected to me. in MLP wont measure the same as 1m measure