Why I'm not seeing the acoustic timing reference in the impulse graph??

[FidelioX]

Hi guys,
I'm new with REW.
I saw a video tutorail (from OCA) for the time aligment of the loud speakers.

I'm not able to see the impulse related to the acoustic timing reference (in my case from L speaker)....

Both measures were taken in this way.

Atached the file.
Follows my REW's settings....

Let me know where I'm in wrong.

Thank you

 

[John Mulcahy]

It's not there, it never was. That part of the video is mistaken.