SUSYQCD_UFO generation

** This question is solved by directly ask UFO file authors. The problem arises from finite width of the particles in the t-channel propagators.***

I am trying to generate eents with SUSYQCD_UFO. The run crashes with error

aMCatNLOError : Poles do not cancel, run cannot continue

My proc card is following and I cannot find anything wrong with the setup.
Any suggestion would be helpful. Thank you very much.

P.S. our setup seems to work with more simple model files such as "vector like quark" "simplified stop"

set group_subprocesses Auto
set ignore_six_quark_processes False
set loop_optimized_output True
set low_mem_multicore_nlo_generation False
set loop_color_flows False
set gauge unitary
set complex_mass_scheme False
set max_npoint_for_channel 0
import model sm
define p = g u c d s u~ c~ d~ s~
define j = g u c d s u~ c~ d~ s~
define l+ = e+ mu+
define l- = e- mu-
define vl = ve vm vt
define vl~ = ve~ vm~ vt~
import model SUSYQCD_UFO
define p = 21 2 4 1 3 -2 -4 -1 -3 5 -5 # pass to 5 flavors
define j = p
generate p p > go go QED=0 [QCD]
output gogo