+prog beam: no superpostion rules for ULS

Dear all

I’m struggling with a warning that I don’t find how to solve it.

So here you have my teddy code for maxima, decreator and beam:

+prog maxima urs:5
head
echo load yes
//define load combinations
//ULS combinations: fundamental combination for the ultimate limit state EN 1990
comb no 1 extr desi type desi titl ‘fundamental ULS’
supp comb 1 extr mami etyp dsln titl ‘forces in design element_comb 1’

//SLS combination
//quasi-permanent combination SLS
comb no 4 extr perm type perm titl ‘quasi-permanent SLS’
supp comb 4 extr mami etyp dsln titl ‘forces in beam elements_comb 4’
end

+prog decreator urs:7
head
//make design element of the beam to be able to use +prog beam
dsln no 1
end

+prog beam urs:8
head
ECHO FULL EXTR
CTRL AMIN yes

dsln no 1

comb LC all type (P)
comb LC all type (D)

end

The warning I get is the following, do you know what I’m doing wrong?