I'm working on a Twilio Studio Flow that writes the output of a few text messages to Google Sheets via a Twilio function. The flow does everything it is supposed to do and sends the final Thank You text, but the execution doesn't "end". Any thoughts on where to look? The second to last function is some code that writes to google sheets, but it seems to execute and goes to the next 'success' step.
Image 1: End of flow diagram
Image 2: Execution still not ended 12 hours after sending last text message 'thank_you'
Image 3: The log of this specific execution that is still active.
Image 4: The log of an execution after I manually end it. It has another line at the bottom. I'm not sure how to make that line happen without manually ending the execution.
I solved this, but I don't know why the solution worked.
In line 66 of this: https://github.com/twilio-labs/function-templates/blob/main/google-sheets/functions/log-sms.protected.js, the example has callback(null, twiml) in it. When I switch it to callback(), the execution completes as expected.