ESP BLE MESH Provisioner assigning same unicast address to multiple nodes

[dhari99]

ESP-IDF version using - 4.4.0
Microcontroller - ESP32 development board

I am customising the sensor client example in the esp-ble-mesh directory. I am provisioning the device of interest using esp_ble_mesh_provisioner_set_dev_uuid_match() api. The provisioner provisions the device which advertises the uuid, set to match in the provisioner. When i tried provisioning three different devices, the provisioner assigned the same unicast address to all of the three devices. Is this a bug or is there a workaround to this problem which I can implement in the application itself?