EVA and loop-induced process

Hi,

I have tried to generate

set group_subprocesses False
generate a a > h h [noborn=QED]
output 2H-gammaloop

but the output command fails with the error

Command "output 2H-gammaloop_from_mu_again" interrupted with error:
KeyError : 'hel_recycling'
Please report this bug on https://bugs.launchpad.net/mg5amcnlo

in the log I see

Traceback (most recent call last):
  File "/Users/pagani/mg5amcnlo/madgraph/interface/extended_cmd.py", line 1544, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/Users/pagani/mg5amcnlo/madgraph/interface/extended_cmd.py", line 1493, in onecmd_orig
    return func(arg, **opt)
  File "/Users/pagani/mg5amcnlo/madgraph/interface/master_interface.py", line 299, in do_output
    self.cmd.do_output(self, line, *args, **opts)
  File "/Users/pagani/mg5amcnlo/madgraph/interface/madgraph_interface.py", line 8191, in do_output
    self.export(nojpeg, main_file_name, group_processes, args)
  File "/Users/pagani/mg5amcnlo/madgraph/interface/master_interface.py", line 313, in export
    return self.cmd.export(self, *args, **opts)
  File "/Users/pagani/mg5amcnlo/madgraph/interface/madgraph_interface.py", line 8334, in export
    calls += self._curr_exporter.export_processes(self._curr_matrix_elements,
  File "/Users/pagani/mg5amcnlo/madgraph/iolibs/export_v4.py", line 230, in export_processes
    calls = calls + self.generate_subprocess_directory(\
  File "/Users/pagani/mg5amcnlo/madgraph/loop/loop_exporters.py", line 3511, in generate_subprocess_directory
    calls += export_v4.ProcessExporterFortranME.generate_subprocess_directory(
  File "/Users/pagani/mg5amcnlo/madgraph/iolibs/export_v4.py", line 4021, in generate_subprocess_directory
    if self.opt['hel_recycling']:
KeyError: 'hel_recycling'

If I would not type in the generation "set group_subprocesses False", the problem would not be there but then the code would not run by setting in the run_card

     4 = lpp1 ! beam 1 type
    -4 = lpp2 ! beam 2 type

which is the thing I am interested in.

Do you have a solution?

Thanks
Cheers

Davide