Mongodb – Orion context broker doesn't create tenant databases "on the fly"

I created and ran fiware-iot-agent in docker container along with fiware-orion context broker. The mongoDb Im using is a sharded cluster with 2 shards and auth-enabled. I verified that orion is connecting to the cluster.
Below is the docker-compose.yml Im using.

version: "3.8"
services:
  # Orion is the context broker
  orion:
    image: fiware/orion:${ORION_VERSION}
    hostname: orion
    container_name: fiware-orion-pms
    networks:
      - default
    expose:
      - "${ORION_PORT}"
    ports:
      - "${ORION_PORT}:${ORION_PORT}" # localhost:1026
    command: -dbhost 192.168.2.5:27030 -dbuser $DB_USER -dbpwd $DB_PWD -dbAuthDb admin  -db orion -logLevel DEBUG
    healthcheck:
      test: curl --fail -s http://orion:${ORION_PORT}/version || exit 1
      interval: 5s
    restart: always
    labels:
      maintainer: ino
      description: fiware-orion
      project: pms
      version: v1.0.0
      type: fiware

  # IoT-Agent is configured for the UltraLight Protocol
  #
  # This deliberately fixed to v1.7.0
  # see: https://github.com/telefonicaid/iotagent-ul/issues/320
  #
  # For v1.8 and v1.9 a dummy resource must be added when provisioning
  #
  iot-agent:
    image: fiware/iotagent-json
    hostname: iot-agent
    container_name: fiware-iot-agent-pms
    networks:
      - default
    expose:
      - "${IOTA_NORTH_PORT}"
    ports:
      - "${IOTA_NORTH_PORT}:${IOTA_NORTH_PORT}" # localhost:4041
    environment:
      - IOTA_CB_HOST=orion # name of the context broker to update context
      - IOTA_CB_PORT=1026 # port the context broker listens on to update context
      - IOTA_NORTH_PORT=4041
      - IOTA_REGISTRY_TYPE=mongodb #Whether to hold IoT device info in memory or in a database
      - IOTA_LOG_LEVEL=FATAL # The log level of the IoT Agent
      - IOTA_TIMESTAMP=true # Supply timestamp information with each measurement
      - IOTA_CB_NGSI_VERSION=v2 # use NGSIv2 when sending updates for active attributes
      - IOTA_AUTOCAST=true # Ensure Ultralight number values are read as numbers not strings
      - IOTA_MONGO_USER=$DB_USER 
      - IOTA_MONGO_PASSWORD=$DB_PWD
      - IOTA_MONGO_AUTH_SOURCE=admin  
      - IOTA_MONGO_HOST=192.168.2.5 # The host name of MongoDB
      - IOTA_MONGO_PORT=27030 # The port mongoDB is listening on
      - IOTA_MONGO_DB=iotagentul # The name of the database used in mongoDB
      - IOTA_MQTT_HOST=192.168.2.10 # The host name of the MQTT Broker
      - IOTA_MQTT_PORT=1883 # The port the MQTT Broker is listening on to receive topics
      - IOTA_DEFAULT_RESOURCE= # Default is blank. I'm using MQTT so I don't need a resource
      - IOTA_PROVIDER_URL=http://iot-agent:${IOTA_NORTH_PORT}
      - IOTA_DEFAULT_TRANSPORT=MQTT
    healthcheck:
      interval: 5s
    restart: always
    labels:
      maintainer: ino
      description: fiware-orion-agent-json
      project: pms
      version: v1.0.0
      type: fiware

networks:
  default:
    labels:
      org.fiware: 'fiware-networks-pms'
    ipam:
      config:
        - subnet: 172.50.1.0/24

My problem is when I add a new device to the fiware using endpoint http://localhost:4041/iot/devices it creates a database named iotagentul and a collection named devices in it. The device I added is being saved to this collection. So far so good. But Im expecting another database to be created when I add a new device. In orion docs it says this:

Normally, Orion Context Broker uses just one database at MongoDB level (the one specified with the -db command line option, typically "orion"). However, when multitenant/multiservice is used the behaviour is different and the following databases are used (let be the value of the -db command line option): The database for the default tenant (typically, orion) The database – for service/tenant (e.g. if the tenant is named tenantA and default -db is used, then the database would be orion-tenantA. Per-service/tenant databases are created "on the fly" as the first request involving tenant data is processed by Orion. Finally, in the case of per-service/tenant databases, all collections and administrative procedures (backup, restore, etc.) are associated to each particular service/tenant database.

So according to this there should be other databases which will hold the entities for the devices. But they are not showing up. I tried with a mongo without authorization but its still same. How can I solve this problem? Any help is appreciated.

Edit: My request body is shown below:

    {
 "devices": [
   {
     "device_id": "PA_TALASLI1",
     "entity_name": "PA_TALASLI1",
     "entity_type": "power_analysis",
     "transport":   "HTTP",
     "timezone":    "Europe/Istanbul",
     "attributes": [
       { "object_id": "Voltage_UL1_N", "name":"Voltage_UL1_N", "type":"Double"},
       { "object_id": "Voltage_UL2_N", "name":"Voltage_UL2_N", "type":"Double"},
       { "object_id": "Voltage_UL3_N", "name":"Voltage_UL3_N", "type":"Double"},
       { "object_id": "Current_L1", "name":"Current_L1", "type":"Double"},
       { "object_id": "Current_L2", "name":"Current_L2", "type":"Double"},
       { "object_id": "Current_L3", "name":"Current_L3", "type":"Double"},
       { "object_id": "Total_Active_Power", "name":"Total_Active_Power", "type":"Double"},
       { "object_id": "Total_Reactive_Power", "name":"Total_Reactive_Power", "type":"Double"},
       { "object_id": "Total_Power_Factor", "name":"Total_Power_Factor", "type":"Double"},
       { "object_id": "Total_Active_Energy_IN_T1", "name":"Total_Active_Energy_IN_T1", "type":"Double"},
       { "object_id": "Total_Active_Energy_IN_T2", "name":"Total_Active_Energy_IN_T2", "type":"Double"},
       { "object_id": "Total_Active_Energy_EX_T1", "name":"Total_Active_Energy_EX_T1", "type":"Double"},
       { "object_id": "Total_Active_Energy_EX_T2", "name":"Total_Active_Energy_EX_T2", "type":"Double"}
      ],
      "lazy":[
        { "object_id": "Voltage_UL1_N", "name":"Voltage_UL1_N", "type":"Double"}
      ],
      "static_attributes": [
         {"name":"refStore", "type": "Relationship","value": "urn:ngsi-ld:pa_talasli1:001"}
      ]
   }
 ]
}

I tried running the container with log level debug but I didnt see anything about the entity creation. If I add a lazy attribute to the body, it creates a table named registerations but there is no entities table. I specifically created an entity through /v2/entities/ but what I need is to have entities be created after I add a new device to /iot/devices