Higgs+ttbar production at NLO + PS with Madgraph5 using aMC@NLO+Herwig6. Log file attached to ProMC. Events are not slimmed. 50k events per file. Other details in lofg files. Process:

set group_subprocesses Auto
set ignore_six_quark_processes 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 loop_sm
generate p p > h t t~ [QCD]

PDF setting

 nn23nlo   = pdlabel   ! PDF set
 244600    = lhaid     ! if pdlabel=lhapdf, this is the lhapdf number