Omnia lost ipv6 due to routing bug

Yesterday my omnia lost ipv6 connectivity. Looks like due to incorrect routing:

root@turris:~# ip -6 r
default from 2axx:xxx:xxxx:xx::/64 via fe80::xxxx:xxxx:xxxx:xxxx dev eth1 proto static metric 512
<network_from_provider_dhcp>::/64 dev eth1 proto static metric 256
<my_ipv6_network>::/64 dev br-lan proto static metric 1024
unreachable <my_ipv6_network>::/48 dev lo proto static metric 2147483647 error -113
fe80::/64 dev br-lan proto kernel metric 256
fe80::/64 dev eth1 proto kernel metric 256
fe80::/64 dev wlan0 proto kernel metric 256
fe80::/64 dev wlan1 proto kernel metric 256
root@turris:~# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 532
inet6 <network_from_provider_dhcp>:xxxx:xxxx:xxxx:xxxx/64 scope global noprefixroute dynamic
valid_lft 2591976sec preferred_lft 604776sec
inet6 xxxx::xxxx:xxxx:xxxx:xxxx/64 scope link
valid_lft forever preferred_lft forever
14: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 <my_ipv6_network>::1/60 scope global noprefixroute
valid_lft forever preferred_lft forever
inet6 xxxx::xxxx:xxxx:xxxx:xxxx/64 scope link
valid_lft forever preferred_lft forever
16: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 xxxx:xxxx:xxxx:xxxx:xxxx/64 scope link
valid_lft forever preferred_lft forever
17: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 xxxx::xxx:xxxx:xxxx:xxxx/64 scope link
valid_lft forever preferred_lft forever

For some reason routing to <my_ipv6_network> is on lo device instead of the bridge.
Any ideas why?

Turris OS version 3.11.5

Thanks!