Hi Anh,
Thx for your answer.
I did as you suggested : deactivated MB AIO, uploaded and activated standalone plugins instead.
No more luck : same thing as before, I get a list of the admin fields for the CPT in Elementor.
Yes, the data I'm trying to retrieve is associated with a CPT created with MB.
I guess the CPT plugins might need a bit of debugging.
Thx for your help.