Service chain instance is not showing consumer reference

[ank]

[root@OS-Controller ~(keystone_neutron)]# gbp servicechain-instance-show 17087364-9d0a-458d-878a-3d08c619215f
+---------------------+--------------------------------------+
| Field | Value |
+---------------------+--------------------------------------+
| classifier_id | 8167e0fe-37bd-44f4-9fbc-4b3f128fe979 |
| config_param_values | {} |
| consumer_ptg_id | N/A |
| description | |
| id | 17087364-9d0a-458d-878a-3d08c619215f |
| management_ptg_id | |
| name | gbp_fw-test_Demo-provider |
| provider_ptg_id | 1a2941e4-fb83-45fd-9c3c-667d0e8f3578 |
| servicechain_specs | bc850937-9ba7-48a0-8cdd-aa33353bac0f |
| tenant_id | 948960a8775847abb8e3213e3babba7c |
+---------------------+--------------------------------------+

 consumer_ptg_id is always showing as N/A though consumer group was created.