Hello, I have spiceDB configured with the dispatcher

--dispatch-upstream-addr=kubernetes:///spicedb.authz:50053

. I see that read and write endpoints are all working fine but the call for lookup/ expand and check are failing with the below said error

last connection error: connection error: desc = \"transport: Error while dialing dial tcp <xxxx>:50053: connect: connection refused

I don't see any other error on the pod logs, any view?

{"level":"warn","grpc.component":"server","grpc.method":"CheckPermission","grpc.method_type":"unary","grpc.service":"authzed.api.v1.PermissionsService","peer.address":"127.0.0.1:33296","protocol":"grpc","requestID":"3bd3b49e05697e5f7b48b1ebad2dade7","grpc.start_time":"2022-04-14T13:04:17Z","grpc.code":"Unavailable","grpc.error":"rpc error: code = Unavailable desc = last connection error: connection error: desc = \"transport: Error while dialing dial tcp 
<xxxx>:50053: connect: connection refused\"","grpc.time_ms":"0.597","time":"2022-04-14T13:04:17Z","message":"finished call"}

Version of Spicedb is :

quay.io/authzed/spicedb:v1.6.0