Comment 8 for bug 1998203

Can you test if the following patch would handle the situation?

diff --git a/madgraph/various/q_polynomial.py b/madgraph/various/q_polynomial.py
index c5f7efb49..df103d73f 100755
--- a/madgraph/various/q_polynomial.py
+++ b/madgraph/various/q_polynomial.py
@@ -590,7 +590,7 @@ C ARGUMENTS
         lines.append(" DO K=0,%d"%(get_number_of_coefs_for_rank(r_2+r_1)-1))
         lines.append(" OUT(J,K,I)=%s"%self.czero)
         lines.append(" ENDDO")
- lines.append(" DO K=1,IN_SIZE")
+ #lines.append(" DO K=1,IN_SIZE")

         # Now we write the lines defining the coefs of OUT(j,*,i) from those
         # of A(k,*,i) and B(j,*,k)
@@ -609,16 +609,26 @@ C ARGUMENTS
                 except KeyError:
                     coef_expressions[new_position]=[new_term,]
         keys = sorted(list(coef_expressions.keys()))
+ max_innerloop = 50
+ line_in_inner = 0
         for coef in keys:
+ if line_in_inner == 0:
+ lines.append(" DO K=1,IN_SIZE")
             value = coef_expressions[coef]
             split=0
             while split<len(value):
                 lines.append("OUT(J,%d,I)=OUT(J,%d,I)+"%(coef,coef)+\
                              '+'.join(value[split:split+self.line_split]))
                 split=split+self.line_split
+ line_in_inner +=1
+ if line_in_inner == max_innerloop:
+ line_in_inner = 0
+ lines.append(" ENDDO")
+

         # And now we simply close the enddo.
- lines.append(" ENDDO")
+ if line_in_inner:
+ lines.append(" ENDDO")
         lines.append(" ENDDO")
         lines.append("ENDDO")
         lines.append("END")

I test that tt~ at NLO was still working, but I need you to test in your case.

Thanks,

Olivier