Why set the MIDI channel to all?
If set to 1 ~ 16, articulation can not be used.
If you search YouTube, you can see how to use articulation in logic.
They all use the MIDI channel set to all.
And
I tried to test it because you gave it to me.
Unfortunately, we did not succeed.
***Using articulation in Logic***
I will attach a photo of my VEP tempalte.