AMQP Trigger Does not work on Azure Service Bus Queue when converting Body to String and JSON Parse Body

[erictmnz]

Describe the problem/error/question

The AMQP trigger does not process existing messages on an Azure Service Bus queue if:

• parse body to string AND
• parse JSON
  are both enabled.
  If one of these is disabled, the trigger correctly processes existing messages on the service bus queue.

When testing the workflow in the editor, it works as expected. But when activating the workflow, messages don't get published.

This situation occurred with a queue of 20k messages and 15k dead lettered messages but was not tested in any other scenario.

What is the error message (if any)?

There is no error message - the workflow will simply not execute for new or existing messages

Please share your workflow/screenshots/recording

Debug info

core

• n8nVersion: 1.76.1
• platform: npm
• nodeJsVersion: 20.18.2
• database: postgres
• executionMode: regular
• concurrency: 10
• license: enterprise (production)

storage

• success: all
• error: all
• progress: false
• manual: true
• binaryMode: memory

pruning

• enabled: true
• maxAge: 4032 hours
• maxCount: 0 executions

client

• userAgent: mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/132.0.0.0 safari/537.36
• isTouchDevice: false

Generated at: 2025-01-31T00:11:32.098Z}

[Joffcom]

Hey @erictmnz,

We have created an internal ticket to look into this which we will be tracking as "GHC-679"