Error 1671 in Python Node (Type Error)

[123xj]

Hi all,

I am calling python node in LabVIEW to call for python script in order to communicate with my HID device.

I am open and close session only once outside the state machine. Every step in the state machine will call for the python script and send different commands to the HID device. However, i faced some intermittent error of 1671 when running the LabVIEW.

Can anyone please advise? I try not to open and close the python session in every step but seems like this cause me a lot of problems. Thanks in advance.