Gateway status:"disconnected" after migration from V2 to V3

Sure!
By running: https://mapper.packetbroker.net/api/v2/gateways/netID=000013,tenantID=ttn,id={gatewayId} the result I get is the following:
{“message”:“store: not found: get gateway”}

On the other hand by running: https://mapper.packetbroker.net/api/v2/gateways/netID=000013,tenantID=ttnv2,id={gatewayId} the result I get is as expected:
{“netID”:“000013”,“tenantID”:“ttnv2”,“id”:{gatewayID},“eui”:{gatewayEUI},“clusterID”:“ttn-v2-eu-3”,“updatedAt”:“2021-11-18T07:09:19.602706Z”,“location”:{“latitude”:40.56475042,“longitude”:22.99399674,“altitude”:0,“accuracy”:0},“antennaCount”:1,“online”:true,“frequencyPlan”:{“region”:“EU_863_870”,“loraMultiSFChannels”:[868100000,868300000,868500000,867100000,867300000,867500000,867700000,867900000]},“rxRate”:30.508188,“txRate”:0}