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Exception on CommonHeaderPreset during commisioning at BM05

Something probably have to be protected in CommonHeaderPreset

    return self.__command_inout(cmd_name, param)
PyTango.DevFailed: DevFailed[
DevError[
    desc = ENOL - Write handshake error (e.g. no listener)
  origin = GPIB error DMA I/O completed (SHAH synched) Remote state Controller-In-Charge Talker active 
  reason = GpibController::send_bin_data(): gpibDeviceException on 14_0
severity = ERR]

DevError[
    desc = Failed to execute command_inout on device d05/gpib/30, command SendBinData
  origin = Connection::command_inout()
  reason = API_CommandFailed
severity = ERR]
]

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/users/blissadm/local/bliss.git/bliss/common/cleanup.py", line 266, in capture
    yield
  File "/users/blissadm/local/bliss.git/bliss/scanning/scan.py", line 1661, in wrapper
    yield
  File "/users/blissadm/local/bliss.git/bliss/scanning/scan.py", line 1835, in _runctx_scan_runner
    self._execute_preset("_stop")
  File "/users/blissadm/local/bliss.git/bliss/scanning/scan.py", line 1541, in _execute_preset
    gevent.joinall(preset_tasks, raise_error=True)
  File "src/gevent/greenlet.py", line 1065, in gevent._gevent_cgreenlet.joinall
  File "src/gevent/greenlet.py", line 1081, in gevent._gevent_cgreenlet.joinall
  File "src/gevent/greenlet.py", line 373, in gevent._gevent_cgreenlet.Greenlet._raise_exception
  File "/users/blissadm/conda/miniconda/envs/daiquiri/lib/python3.7/site-packages/gevent/_compat.py", line 66, in reraise
    raise value.with_traceback(tb)
  File "src/gevent/greenlet.py", line 908, in gevent._gevent_cgreenlet.Greenlet.run
  File "/users/blissadm/local/bliss.git/bliss/scanning/scan.py", line 411, in _stop
    if self.__new_channel_data:
AttributeError: 'CommonHeaderPreset' object has no attribute '_ScanPreset__new_channel_data'