Openstack Environment with Hardware Offload observing ovs-vswitchd and neutron-ovs-agent

Issue

Launching a new instance causes ovs-vswitchd and neutron-ovs-agent to crash.
Nova instance creation error:

{u'message': u'Build of instance 54643869-a4bc-4f54-9974-f719ba2f764d aborted: Failed to allocate the network(s), not rescheduling.', u'code': 500, u'details': u'Trac\n  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1858, in _do_build_and_run_instance\n    filter_properties, request_spec)\n  File "/usr/lib/python2.7/site-packages/nova/compute/man_and_run_instance\n    reason=msg)\nBuildAbortException: Build of instance 54643869-a4bc-4f54-9974-f719ba2f764d aborted: Failed to allocate the network(s), not rescheduling.\n', u'created': u'2020-03-06T20: