Can not access dashboard in fuel UI for failed env with virt roles

Steps to reproduce
1. Create env
2. Add 3 nodes with virt role
3. Configure VMs
4. Hit Provision VMs button
5. Emulate deployment fail (kill puppet)
6. Try to open Dashboard tab

Expected result:
 Dashboard tab shown in browser
Actual result:
 Fuel UI seems hanging on ndes tab

Diagnostic Snapshot: https://drive.google.com/open?id=0B0kV2KAlVj3NQTM4Yk82bkZKejg

Environment Info
[root@fuel ~]# shotgun2 short-report
cat /etc/fuel_build_id:
 495
cat /etc/fuel_build_number:
 495
cat /etc/fuel_release:
 9.0
cat /etc/fuel_openstack_version:
 mitaka-9.0
rpm -qa | egrep 'fuel|astute|network-checker|nailgun|packetary|shotgun':
 fuel-release-9.0.0-1.mos6349.noarch
 fuel-misc-9.0.0-1.mos8460.noarch
 python-packetary-9.0.0-1.mos140.noarch
 fuel-bootstrap-cli-9.0.0-1.mos285.noarch
 fuel-migrate-9.0.0-1.mos8460.noarch
 shotgun-9.0.0-1.mos90.noarch
 fuel-notify-9.0.0-1.mos8460.noarch
 nailgun-mcagents-9.0.0-1.mos750.noarch
 python-fuelclient-9.0.0-1.mos325.noarch
 fuel-9.0.0-1.mos6349.noarch
 fuel-utils-9.0.0-1.mos8460.noarch
 fuel-setup-9.0.0-1.mos6349.noarch
 fuel-provisioning-scripts-9.0.0-1.mos8743.noarch
 fuel-library9.0-9.0.0-1.mos8460.noarch
 network-checker-9.0.0-1.mos74.x86_64
 fuel-agent-9.0.0-1.mos285.noarch
 fuel-ui-9.0.0-1.mos2717.noarch
 fuel-ostf-9.0.0-1.mos936.noarch
 fuelmenu-9.0.0-1.mos274.noarch
 fuel-nailgun-9.0.0-1.mos8743.noarch
 rubygem-astute-9.0.0-1.mos750.noarch
 fuel-mirror-9.0.0-1.mos140.noarch
 fuel-openstack-metadata-9.0.0-1.mos8743.noarch