I have a hunch that the issue is related to how the response from OpenAI is being handled in Zapier. The "{raw: true}" error usually indicates that the data from OpenAI is arriving in a format that Zapier can't process directly. This usually happens when the data is too large or in an unsupported format.
Could you please try replaying the Zap run by clicking on the “Replay Zap run” button?
I would suggest contacting our Support Team regarding the issue you are facing. Our Support Team possesses the necessary tools to view the logs of the Zap and identify the root cause of the problem.