publish_continue_session() error

[grishaburd]

Hi, I am getting the following error massage when calling publish_continue_session() to clarify a slot (intent filter is set to a single intent). From the MQTT bus monitor, I can see that NLU gets the slot correctly filled, however due to error below my callback function is not being called. Any suggestions?

Traceback (most recent call last):
File "_ctypes/callbacks.c", line 234, in 'calling callback function'
File "/home/greg/environments/python3.6/lib/python3.6/site-packages/hermes_python/ffi/wrappers.py", line 61, in convert_arguments_when_invoking_function
return func(hermes_client, *parsed_args)
File "/home/greg/environments/python3.6/lib/python3.6/site-packages/hermes_python/ffi/wrappers.py", line 60, in
parsed_args = (handler_argument_type.from_c_repr(arg.contents) for arg in (args))
File "/home/greg/environments/python3.6/lib/python3.6/site-packages/hermes_python/ontology/dialogue/intent.py", line 68, in from_c_repr
c_asr_token_arrays_length = c_repr.asr_tokens.contents.count
ValueError: NULL pointer access