Notify Action Not Triggering Inside For Loop in Compound Action

I’m facing an issue with a Compound Action where the flow executes successfully until fetching the manager_record, but the notify step does not trigger. There are no errors in the logs, both employee_record and manager_record are not NULL, and the workflow does not explicitly fail or terminate. The execution simply stops after fetching the manager record, and I don’t see any logs beyond that point. For testing, I’m using a single static record via script, but in the actual use case, the data comes from an HTTP action, which is why a for loop is used. I’m also attaching a screenshot of the logs for reference.

Here is the exact Compound Action configuration:

steps:
  - script:
      code: |
        return [{
            "LOGON_NAME": "mw_test_user_5@company.com", 
            "EMAIL_ADDRESS": "mw_test_user_5@company.com",
            "MANAGER": "manager-name", 
            "ACCOUNT_EXPIRY_DATE": "2026-02-26 00:00:00",
            "DISPLAY_NAME": "mw_test_user_5",
            "SAM_ACCOUNT_NAME": "mw_test_user_5"
        }]
      output_key: filtered_user_list
      input_args:
        unused_var: ignore_me

  - for:
      output_key: processed_expiring_users
      each: UserObject
      in: data.filtered_user_list
      index: i
      steps:
        - action:
            action_name: mw.get_user_by_email
            output_key: employee_record
            input_args:
              user_email: UserObject.LOGON_NAME.$LOWERCASE()

        - action:
            action_name: mw.get_user_by_email
            output_key: manager_record
            input_args:
              user_email: data.employee_record.user.manager_email.$LOWERCASE()

        - notify:
            output_key: manager_notification_result
            recipient_id: data.manager_record.user.record_id
            message:
              RENDER():
                args:
                  date: UserObject.ACCOUNT_EXPIRY_DATE
                  email: UserObject.EMAIL_ADDRESS
                  name: UserObject.SAM_ACCOUNT_NAME
                template: "[TEST MODE] The Account for Contractor {{name}} ({{email}}) is set to expire on {{date}}..."
            actions:
              - key: renew_action
                label: "'Renew Account'"
                conversation_action:
                  conversation_process_name: Renew_account_conversational_process
                  input_args:
                    renewed_date: UserObject.ACCOUNT_EXPIRY_DATE.$PARSE_TIME('%Y-%m-%d %H:%M:%S').$ADD_DATE(0, 0, 90).$FORMAT_TIME('%Y-%m-%d %H:%M:%S')
                    requestor: data.employee_record.user.manager_email.$SPLIT("@")[0]
                    user_name: UserObject.SAM_ACCOUNT_NAME

              - key: do_not_renew_action
                label: "'Do Not Renew'"
                conversation_action:
                  conversation_process_name: Delete_not_renew_User_Account
                  input_args:
                    username: UserObject.SAM_ACCOUNT_NAME

This same configuration was working fine 4 days back without any changes