Multicast: No downlink path available

I have created the multicast device in v3 but when I schedule multicast downlink it will show below error

no downlink path available

How can I send a schedule multicast downlink?

@All

Does anyone know how to send Multicast Downlink from v3?

same issue here.

I belive that this is due to the fact that the NS does not not know which gateway to use, so it is needed to be specified somehow.

However, even following the instructions given here Multicast | The Things Stack for LoRaWAN , I can’t manage to schedule a downlink

in the mutlicastgroup, under “live data” i cannot even see any message when publishing this json

{
   "downlinks":[
      {
         "frm_payload":"/jIyMhE0NDQ0NA==",
         "f_port":42,
         "priority":"NORMAL",
         "class_b_c":{
            "gateways":[
               {
                  "gateway_ids":{
                     "gateway_id":"eui-xxxxxxxxxxxxxxxxxx"
                  }
               },
               {
                  "gateway_ids":{
                     "gateway_id":"mygatewayid"
                  }
               }
            ],
            "absolute_time":"2021-06-28T21:23:00Z"
         }
      }
   ]
}

the topic used is:
v3/myapplicationid@ttn/devices/multicastgroupid/down/push

I’m pretty sure that the topic is correct, becasue when I publish this JSON, whithout the gateway information

{
  "downlinks": [{
    "frm_payload": "/jIyMhE0NDQ0NA==",
    "f_port": 42,
    "priority": "NORMAL"   
    }
  }]
}

I got the same error message that i receive from the console (no downlink path available)

I am also getting the same error when trying to send downlink with multicast device. I am getting “no downlink path available” message. I am trying to publish below JSON in JSON-box of downlink message:

{“downlinks”:[{
“frm_payload”: “vu8=”,
“f_port”: 200,
“priority”: “NORMAL”,
“class_b_c”: {
“gateways”: [
{
“gateway_ids”: {
“gateway_id”: “ttn-gw-id”
}
}
]
}
}]
}

I hope I am not making a mistake here. Kindly let me how can I send multicast downlink.