Wrong error when attempting generation

[olus2000]

Sometimes (didn't test enough) when the server receives a generation request it raises an "Attempt to generate unregistered game " even though is registered. It is then followed by a lot of errors regarding pickling.

Full log:

[2021-12-28 09:38:00,815: INFO/MainProcess] Task nptimelapse.tasks.make_timelapse[b47a38c4-9d77-400c-99ac-233d705fd543] received
[2021-12-28 09:38:01,400: INFO/ForkPoolWorker-3] Generat timelapse 5900707151216640
[2021-12-28 09:38:02,489: ERROR/ForkPoolWorker-3] Attempt to generate unregistered game 5900707151216640
[2021-12-28 09:38:02,709: ERROR/ForkPoolWorker-3] Task nptimelapse.tasks.make_timelapse[b47a38c4-9d77-400c-99ac-233d705fd543] raised unexpected: TimelapseGameNotRegisteredError("TimelapseGameNotRegisteredError(TimelapseGameNotRegisteredError(...), 'Game 5900707151216640 is not registered')", 'Game 5900707151216640 is not registered')
Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.7/site-packages/celery/app/trace.py", line 450, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/home/pi/projects/nptimelapse_dev/nptimelapse/__init__.py", line 70, in __call__
    with app.app_context():
  File "/home/pi/projects/nptimelapse_dev/nptimelapse/tasks.py", line 48, in make_timelapse
    raise TimelapseGameNotRegisteredError(game_id)
nptimelapse.tasks.TimelapseGameNotRegisteredError: ("TimelapseGameNotRegisteredError(TimelapseGameNotRegisteredError(...), 'Game 5900707151216640 is not registered')", 'Game 5900707151216640 is not registered')
[2021-12-28 09:38:02,861: ERROR/MainProcess] Task handler raised error: <MaybeEncodingError: Error sending result: ''(1, <ExceptionInfo: TimelapseGameNotRegisteredError("TimelapseGameNotRegisteredError(TimelapseGameNotRegisteredError(...), \'Game 5900707151216640 is not registered\')", \'Game 5900707151216640 is not registered\')>, None)''. Reason: ''PicklingError("Can\'t pickle <class \'nptimelapse.tasks.TimelapseGameNotRegisteredError\'>: it\'s not the same object as nptimelapse.tasks.TimelapseGameNotRegisteredError")''.>
Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.7/site-packages/billiard/pool.py", line 366, in workloop
    put((READY, (job, i, result, inqW_fd)))
  File "/home/pi/.local/lib/python3.7/site-packages/billiard/queues.py", line 366, in put
    self.send_payload(ForkingPickler.dumps(obj))
  File "/home/pi/.local/lib/python3.7/site-packages/billiard/reduction.py", line 56, in dumps
    cls(buf, protocol).dump(obj)
billiard.pool.MaybeEncodingError: Error sending result: ''(1, <ExceptionInfo: TimelapseGameNotRegisteredError("TimelapseGameNotRegisteredError(TimelapseGameNotRegisteredError(...), \'Game 5900707151216640 is not registered\')", \'Game 5900707151216640 is not registered\')>, None)''. Reason: ''PicklingError("Can\'t pickle <class \'nptimelapse.tasks.TimelapseGameNotRegisteredError\'>: it\'s not the same object as nptimelapse.tasks.TimelapseGameNotRegisteredError")''.