Celery not consuming tasks when queue name is specified

I have 2 different tasks defined and I would like to route each task to its corresponding queue. However, when I try to specify a queue using the -Q option, the tasks do not get consumed by Celery. However, everything works as expected if I run without the -Q option. I am using celery==4.2.0

Am I missing any configuration or setting something up in a wrong manner?

I'm using docker-compose.yml to run each queue in a different container.

docker-compose.yml <-- does not work since -Q is specified

version: '3'
services:
  broker:
    image: rabbitmq:3
    environment: &envfile
      RABBITMQ_DEFAULT_USER: user
      RABBITMQ_DEFAULT_PASS: password
      CELERY_BROKER: {something}
      RABBITMQ_BACKEND: {something}

    ports:
      - 5672:5672

worker1:
    build: .
    image: worker1
    restart: "always"
    command: ["celery", "worker", "--app=worker.app", "--concurrency=4", "--hostname=worker1@%h", "--loglevel=INFO", "-Q", "queue1"]
    depends_on:
      - broker
  
worker2:
    build: .
    image: worker2
    restart: "always"
    environment: *envfile
    command: ["celery", "worker", "--app=worker.app", "--concurrency=4", "--hostname=worker2@%h", "--loglevel=INFO", "-Q", "queue1"]
    depends_on:
      - broker

scheduler:
    build: .
    image: scheduler
    restart: "always"
    environment: *envfile
    command: ["celery", "beat", "--app=worker.app", "--loglevel=INFO"]
    depends_on:
      - broker
      - worker1
      - worker2

My file structure is as follows:

├── rootfolder
│   ├── worker
│        ├── celery.py
│        ├── tasks.py
│        ├── schedule.py
│        ├── __init__.py
└── 

celery.py

from celery import Celery
import os

app = Celery(
    'worker',
    broker=os.environ['CELERY_BROKER'],
    backend=os.environ['RABBITMQ_BACKEND']
)

app.conf.beat_schedule = {
    "get-message": {
        "task": "worker.get_message_list",
        "schedule": 60
    },
    "get-somethingelse": {
        "task": "worker.get_something_list",
        "schedule": 60
    }
}


if __name__ == '__main__':
    app.start()