Missing flow for VM internal IP in T21

Overview:
---------
Internal VM IP doesn't have a flow in T21.

Steps:
------

• Created 3 networks + public/external network
• Created router connected to 3 networks + to public/external network
• Created 6 VMs. 2 VMs on each of the network
• All VMs has FIP
• Started running inter connectivity ping checks
• Started running ping checks to FIPs

Expected results:
-----------------

• All connectivity checks works

Actual results:
---------------

• For one VM with internal IP 3.3.3.211 flow was missing in T21 and therefore internal connectivity to it and ping to its FIP wasn't working

Bug timelines and part of log file:
------------------------------------
VM was created around 2017-01-01 16:15:13

LOG:
====
2017-01-01 16:15:13,209 | WARN | nPool-1-worker-3 | VrfEntryListener | 319 - org.opendaylight.netvirt.fibmanager-impl - 0.3.2.SNAPSHOT | Failed to add Route: 3.3.3.211/32 i
n vpn: 3ac7b4b1-9512-4c2c-8307-908cd106e96b
2017-01-01 16:15:13,262 | WARN | lt-dispatcher-16 | ShardDataTree | 176 - org.opendaylight.controller.sal-distributed-datastore - 1.4.2.SNAPSHOT | member-1-shard-invento
ry-config: Store Tx member-1-datastore-config-fe-1-txn-2334: Conflicting modification for path /(urn:opendaylight:inventory?revision=2013-08-19)nodes/node/node[

{(urn:opendaylight:inventory? revision=2013-08-19)id=openflow:84326939651705}

]/AugmentationIdentifier

{childNames=[(urn:opendaylight:flow:inventory?revision=2013-08-19)description, (urn:opendaylight:flow:inventory?revisi on=2013-08-19)supported-actions, (urn:opendaylight:flow:inventory?revision=2013-08-19)software, (urn:opendaylight:flow:inventory?revision=2013-08-19)hardware, (urn:opendaylight:flow:invento ry?revision=2013-08-19)group, (urn:opendaylight:flow:inventory?revision=2013-08-19)stale-group, (urn:opendaylight:flow:inventory?revision=2013-08-19)table, (urn:opendaylight:flow:inventory? revision=2013-08-19)stale-meter, (urn:opendaylight:flow:inventory?revision=2013-08-19)serial-number, (urn:opendaylight:flow:inventory?revision=2013-08-19)meter, (urn:opendaylight:flow:inven tory?revision=2013-08-19)switch-features, (urn:opendaylight:flow:inventory?revision=2013-08-19)supported-match-types, (urn:opendaylight:flow:inventory?revision=2013-08-19)supported-instruct ions, (urn:opendaylight:flow:inventory?revision=2013-08-19)table-features, (urn:opendaylight:flow:inventory?revision=2013-08-19)ip-address, (urn:opendaylight:flow:inventory?revision=2013-08 -19)manufacturer, (urn:opendaylight:flow:inventory?revision=2013-08-19)port-number]}

/(urn:opendaylight:flow:inventory?revision=2013-08-19)table/table[

{(urn:opendaylight:flow:inventory?revis ion=2013-08-19)id=40}

]/flow/flow[

{(urn:opendaylight:flow:inventory?revision=2013-08-19)id=Egress_ARP_84326939651705_fa:16:3e:10:70:8d}

].