Thanks for the report. Unfortunately, I can't reproduce here
Could you provide some more details:
1) How is Nova configured? Perhaps just include your nova.conf files
2) Could you also reproduce this with 'debug=true' in your nova.conf and attach the logs
3) Please run 'sudo virsh nwfilter-list' after the error occurs and attach the output
4) Could you also detail the commands you used to create the instance
Thanks for the report. Unfortunately, I can't reproduce here
Could you provide some more details:
1) How is Nova configured? Perhaps just include your nova.conf files
2) Could you also reproduce this with 'debug=true' in your nova.conf and attach the logs
3) Please run 'sudo virsh nwfilter-list' after the error occurs and attach the output
4) Could you also detail the commands you used to create the instance