[Build 14]:Ubuntu:SG: default ingress rule for default SG not working

in my current setup, default ingress rule in default SG is not working.
its allowing traffic from VMs outside the default SG too.

As per Naveen and Praveen, its happening because somehow default SG index is currently 0, which is invalid.

acl entry in api server:

"access_control_list_entries": {

    "dynamic": null,
    "acl_rule": [
        {
            "match_condition": {
                "src_address": {
                    "security_group": 0,
                    "subnet": null,
                    "virtual_network": null
                },
                "protocol": "any",
                "src_port": {
                    "end_port": 65535,
                    "start_port": 0
                },
                "dst_port": {
                    "end_port": 65535,
                    "start_port": 0
                },
                "dst_address": {
                    "security_group": null,
                    "subnet": null,
                    "virtual_network": null
                }
            },
            "action_list": {
                "simple_action": "pass",
                "gateway_name": null,
                "apply_service": [ ],
                "mirror_to": null,
                "assign_routing_instance": null
            }

for acl entry in agent see the attachment.

setup info:
env.roledefs = {
      'all': [host1,host2,host3,host4,host5],
      'cfgm': [host1,host2,host5],
      'openstack':[host2],
      'control': [host2,host1],
      'compute': [host3,host4],
      'collector': [host2,host1],
      'webui': [host1],
      'database': [host1,host2],
      'build': [host_build],
  }

  env.hostnames = {
      'all': ['nodeh1', 'nodeg18', 'nodeh8', 'nodec11', 'nodec12']
  }

all logs are @nodeb11:/home/kalok/contrail/bugLogs/<bugId>