Problems with Unbound bug 9998 patch

ctminime

I am building an HA pair (pfSense 2.5.0) and because I was having issues with Unbound starting, I applied the patch mentioned in the redmine bug report. https://redmine.pfsense.org/issues/9998 This allowed unbound to start up normally upon boot. However, if Unbound restarts or goes down for any reason, I can't get it back up with out rebooting. I get the Error below. From reading the comments, Am I correct in thinking that the problem is that both firewalls have fe80::1:1? And that the work around is to make a VIP for that IP? FYI no carp configured on WAN and no Unbound bindings to the WAN. At the time the ifconfig commands were run, Unbound was running on Standby but couldn't be started on the Master.

/status_services.php: The command '/usr/local/sbin/unbound -c /var/unbound/unbound.conf' returned exit code '1', the output was '[1590011817] unbound[1561:0] error: can't bind socket: Can't assign requested address for fe80::1:1 port 53 [1590011817] unbound[1561:0] fatal error: could not open ports'

MASTER--------

vtnet1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=d00b8<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWFILTER,VLAN_HWTSO,LINKSTATE>
ether 5e:e1:e4:af:dd:bb
hwaddr 5e:e1:e4:af:dd:bb
inet6 fe80::5ce1:e4ff:feaf:ddbb%vtnet1 prefixlen 64 scopeid 0x2
inet6 fe80::1:1%vtnet1 prefixlen 64 duplicated scopeid 0x2
inet 192.168.169.251 netmask 0xffffff00 broadcast 192.168.169.255
inet 192.168.169.254 netmask 0xffffff00 broadcast 192.168.169.255 vhid 1
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
media: Ethernet 10Gbase-T
status: active
carp: MASTER vhid 1 advbase 1 advskew 0

BACKUP--------

vtnet1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=d00b8<VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWFILTER,VLAN_HWTSO,LINKSTATE>
ether 76:05:57:33:50:fa
hwaddr 76:05:57:33:50:fa
inet6 fe80::7405:57ff:fe33:50fa%vtnet1 prefixlen 64 scopeid 0x2
inet6 fe80::1:1%vtnet1 prefixlen 64 scopeid 0x2
inet 192.168.169.252 netmask 0xffffff00 broadcast 192.168.169.255
inet 192.168.169.254 netmask 0xffffff00 broadcast 192.168.169.255 vhid 1
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
media: Ethernet 10Gbase-T
status: active
carp: BACKUP vhid 1 advbase 1 advskew 100