I have two CCR1036-8G-2S+ with RouterOS 6.45.5 multiple parallel/same vlan’s. ( same problem with older versions )
The system log’s is flooded with this

And the two get full sync in some vlan’s but not in all. I think the problem is based on same EUI-64 Link-Local who i can’t change and either change the mac. Creating bridges to solve the mac-problem is not an alternative here.
I have tested to change almost allt parameters with same result. Network type, stub zone with other areas etc.
Any ideas?
/ipv6 address
add address=2001:bd8:100:3901::18 advertise=no interface=v3901
add address=2001:bd8:100:3906::18 advertise=no interface=v3906
add address=2001:bd8:100:3902::18 advertise=no interface=v3902
/routing ospf-v3 interface
add area=backbone interface=v3901
add area=backbone interface=v3902
add area=backbone interface=v3906