Updating Questionnaire Template via HDL

Summary:

We have been able to successfully load a questionnaire template via HDL, however, we have not been able to successfuly update the the questionnaire template via HDL.

Content (required):

We have been able to successfully load a questionnaire template via HDL, however, we have not been able to update the the questionnaire template via HDL. It is my understanding that the Merge command will insert if the data does not exist or update the data row exists.

We are trying something simple like updating the question from not required to required, or changing the text of the question.

When loading we get the below error, but I don't see the questionnaire in use.