I have created an automation in To Do app base on this configuration.

Automation Name: test

Model: Task

Trigger: After creation

Delay: 0 Hours after creation

Apply on: Match all records

It has 1 Actions To Do, which is Execute Code. It contains this. 

# Available variables:
#  - env: environment on which the action is triggered
#  - model: model of the record on which the action is triggered; is a void recordset
#  - record: record on which the action is triggered; may be void
#  - records: recordset of all records on which the action is triggered in multi-mode; may be void
#  - time, datetime, dateutil, timezone: useful Python libraries
#  - float_compare: utility function to compare floats based on specific precision
#  - b64encode, b64decode: functions to encode/decode binary data
#  - log: log(message, level='info'): logging function to record debug information in ir.logging table
#  - _logger: _logger.info(message): logger to emit messages in server logs
#  - UserError: exception class for raising user-facing warning messages
#  - Command: x2many commands namespace
# To return an action, assign: action = {...}

log("Hello world", level='info')

The problem is whenever I create new Task, this automation could not be triggered at all. I already checked other triggers and "Stage is set to" trigger does not work also. I need help as to why this happens and some possible solutions. Thank you in advance.